how do the different architectures of a polymer affect their propertie.docx
•Download as DOCX, PDF•
0 likes•2 views
how do the different architectures of a polymer affect their properties? Solution Polymers are affected by molecular weight and crystallinity. Linear polymers - single chains, flexible , van der Waals between molecules. Branched polymers - side branches , packing is less efficient, lower density,less crystalline than linear. Branching also affects chain entanglement, the ability of chains to slide past one another, in turn affecting the bulk physical properties. Long chain branches may increase polymer strength, toughness, and the glass transition temperature (T g ) due to an increase in the number of entanglements per chain. From an adsorption point-of-view, the bottle-brush homopolymers have the ability to attach to the surface through both side chain and backbone segments. If adsorption occurs through the attachment of the side chains on the surface, then the polymer attains a flat conformation at the interface since the gain in adsorption energy increases with the number of contact points between the side chain segments and the surface Dendrimers are a special case of branched polymer where every monomer unit is also a branch point. This tends to reduce intermolecular chain entanglement and crystallization. A related architecture, the dendritic polymer, are not perfectly branched but share similar properties to dendrimers due to their high degree of branching. .
Report
Share
Report
Share
Recommended
Evaluation of polymer
1. The document evaluates various physical properties of polymers including molecular weight, molecular shape, stereoregularity, branching, end-to-end distance, crystallinity, glass transition temperature, and tensile strength.
2. Several techniques for characterizing polymers are described, such as osmometry, light scattering, viscometry, and gel permeation chromatography for determining molecular weight, as well as differential scanning calorimetry and thermogravimetric analysis for analyzing thermal properties.
3. The physical properties of polymers depend on factors like molecular weight, chain structure, crystallinity, and temperature, and understanding these properties is important for evaluating polymers for different applications.
Introduction of polymer
The document provides an introduction to polymers including definitions and classifications. It discusses that polymers are large molecules composed of repeating structural units called monomers. Polymerization is the process of forming polymers from monomers. Polymers can be classified based on their response to heat, type of polymerization reaction, chemical structure, and physical structure. The key properties of polymers like strength, plasticity, chemical resistance, physical state, glass transition temperature, and mechanical properties are also summarized. Finally, some major polymer-based industries like plastics, rubber, fibers, and coatings are listed.
6. introduction TO POLYMER.pdf
Polymers are large molecules composed of many repeating molecular units bonded together. Monomers are small molecules that bond together through polymerization reactions to form long polymer chains. There are two main types of polymerization: addition polymerization involves the simple addition of monomers without loss of atoms, while condensation polymerization involves the loss of a small molecule during bonding. Polymers can have linear, branched, or crosslinked configurations that influence their properties and whether they are thermoplastic, thermoset, or elastomer materials. Common polymers are used to make products like tires, pipes, and various plastics due to their properties such as toughness, flexibility, chemical resistance, and low cost.
Polymer Brushes
The document discusses polymer brushes and methods for their synthesis. It provides an overview of polymer brushes, including their general features and how their properties depend on grafting density. It also describes various types of polymer brushes and common methods for synthesizing them, including grafting onto, grafting from, and grafting through approaches. Finally, it discusses uses of responsive polymer brushes and their potential applications in areas like drug delivery and microfluidic devices.
advanced materials-converted-1.pdf
The document discusses the functions and desired properties of matrices in composite materials. Matrices hold fibers together, protect them from the environment, distribute loads evenly between fibers, and improve properties like impact resistance. Desired matrix properties include low moisture absorption, shrinkage, and thermal expansion. The document also discusses polymer matrix composites, classifications of polymers, factors affecting composite properties, and manufacturing processes for composites with thermoplastic and thermosetting matrices.
Polymers.pdf
This document provides an introduction and overview of polymers. It discusses that polymers are macromolecules composed of monomer units linked by covalent bonds that can be natural or synthetic. The structure of polymers can be linear, branched, or cross-linked. Polymers can be classified based on their source, structure, type of polymerization reaction, monomers used, and molecular forces. Key properties of polymers discussed include crystallinity, molecular weight, glass transition temperature, melting point, strength, elongation, and plasticity. Factors that influence properties like glass transition temperature are also outlined.
Keshob's ppt
this ppt contain physical, mechanical and chemical properties of the polymer compound and their mechanical weight distribution. this ppt make an idea about all of the mentioned agenda.
05.adhesion and adhesives theory
The document discusses various theories of adhesion including physical absorption, chemical bonding, diffusion, electrostatic, and mechanical interlocking theories. It explains that adhesion occurs due to molecular contact and surface forces between two materials. Adhesives are now commonly used in manufacturing across many industries like construction, automobiles, footwear, and more due to advantages like joining dissimilar materials and reducing weight.
Recommended
Evaluation of polymer
1. The document evaluates various physical properties of polymers including molecular weight, molecular shape, stereoregularity, branching, end-to-end distance, crystallinity, glass transition temperature, and tensile strength.
2. Several techniques for characterizing polymers are described, such as osmometry, light scattering, viscometry, and gel permeation chromatography for determining molecular weight, as well as differential scanning calorimetry and thermogravimetric analysis for analyzing thermal properties.
3. The physical properties of polymers depend on factors like molecular weight, chain structure, crystallinity, and temperature, and understanding these properties is important for evaluating polymers for different applications.
Introduction of polymer
The document provides an introduction to polymers including definitions and classifications. It discusses that polymers are large molecules composed of repeating structural units called monomers. Polymerization is the process of forming polymers from monomers. Polymers can be classified based on their response to heat, type of polymerization reaction, chemical structure, and physical structure. The key properties of polymers like strength, plasticity, chemical resistance, physical state, glass transition temperature, and mechanical properties are also summarized. Finally, some major polymer-based industries like plastics, rubber, fibers, and coatings are listed.
6. introduction TO POLYMER.pdf
Polymers are large molecules composed of many repeating molecular units bonded together. Monomers are small molecules that bond together through polymerization reactions to form long polymer chains. There are two main types of polymerization: addition polymerization involves the simple addition of monomers without loss of atoms, while condensation polymerization involves the loss of a small molecule during bonding. Polymers can have linear, branched, or crosslinked configurations that influence their properties and whether they are thermoplastic, thermoset, or elastomer materials. Common polymers are used to make products like tires, pipes, and various plastics due to their properties such as toughness, flexibility, chemical resistance, and low cost.
Polymer Brushes
The document discusses polymer brushes and methods for their synthesis. It provides an overview of polymer brushes, including their general features and how their properties depend on grafting density. It also describes various types of polymer brushes and common methods for synthesizing them, including grafting onto, grafting from, and grafting through approaches. Finally, it discusses uses of responsive polymer brushes and their potential applications in areas like drug delivery and microfluidic devices.
advanced materials-converted-1.pdf
The document discusses the functions and desired properties of matrices in composite materials. Matrices hold fibers together, protect them from the environment, distribute loads evenly between fibers, and improve properties like impact resistance. Desired matrix properties include low moisture absorption, shrinkage, and thermal expansion. The document also discusses polymer matrix composites, classifications of polymers, factors affecting composite properties, and manufacturing processes for composites with thermoplastic and thermosetting matrices.
Polymers.pdf
This document provides an introduction and overview of polymers. It discusses that polymers are macromolecules composed of monomer units linked by covalent bonds that can be natural or synthetic. The structure of polymers can be linear, branched, or cross-linked. Polymers can be classified based on their source, structure, type of polymerization reaction, monomers used, and molecular forces. Key properties of polymers discussed include crystallinity, molecular weight, glass transition temperature, melting point, strength, elongation, and plasticity. Factors that influence properties like glass transition temperature are also outlined.
Keshob's ppt
this ppt contain physical, mechanical and chemical properties of the polymer compound and their mechanical weight distribution. this ppt make an idea about all of the mentioned agenda.
05.adhesion and adhesives theory
The document discusses various theories of adhesion including physical absorption, chemical bonding, diffusion, electrostatic, and mechanical interlocking theories. It explains that adhesion occurs due to molecular contact and surface forces between two materials. Adhesives are now commonly used in manufacturing across many industries like construction, automobiles, footwear, and more due to advantages like joining dissimilar materials and reducing weight.
4. Introduction to PMC (1).pptx
This document discusses polymer matrix composites (PMCs). It defines PMCs and describes the two main types of polymer matrices: thermosets and thermoplastics. Thermosets cure irreversibly while thermoplastics can be remelted and reshaped. Common thermoset matrices include epoxies and unsaturated polyesters, while common thermoplastics include nylons and polyethylenes. The document also discusses different types of fillers/reinforcements like fibers, flakes and particulates that are added to polymers to improve mechanical properties. Finally, it examines different bonding mechanisms at the interface between the filler and matrix like mechanical, chemical, electrostatic and interdiffusion bonding that influence the
Impact Modification Of Thermoplastics
The document discusses various methods for improving the toughness of polymers, including rubber modification of thermoplastics. It describes how the inclusion of small, well-dispersed rubber particles can induce toughening mechanisms in a thermoplastic matrix like crazing, shear yielding, and cavitation. These particles prevent the growth of large cracks. Thermoplastic elastomers are also discussed as bimicrophasic materials that can be processed and recycled like thermoplastics but have rubber-like elasticity. Styrenic block copolymers and thermoplastic vulcanizates are provided as examples.
Textile raw material 1
The document discusses various topics related to textile raw materials including:
- Definitions of oligomer, monomer residue, living polymer, and dead polymer.
- Major uses of polymers in textiles such as elastomers, plastics, and fibers.
- Fiber morphology and its properties including surface contour, shape, fineness, and crimp.
- Different types of polymerization including addition, condensation, chain growth, and step growth polymerization.
- Characterization, degradation, and forces between polymers.
CHAPTER 5 behavior of polymers XX.ppt
This document discusses the properties of polymers. It begins by introducing the topics that will be covered, including physical, thermal, electrical, mechanical, thermo-mechanical, and chemical properties of polymers. It then provides details on various physical properties such as molecular weight and density. Thermal properties like glass transition temperature and melting point are explained. Factors that influence properties like mechanical strength and electrical conductivity of polymers are also described. The document aims to explain the different types of properties exhibited by polymers and factors that impact these properties.
Polymers .pdf
Polymers can be formed through addition polymerization or step-growth polymerization. They have various molecular structures that influence properties like crystallinity. Thermoplastics soften when heated while thermosets form permanent chemical bonds. Common polymers include polyethylene, polypropylene, polystyrene, and nylon. They are processed through methods like extrusion, injection molding, and thermoforming to make a wide range of products.
Methods of polymerisation
Methods of polymerisation It is also called as Zeigler – Natta polymerisation.
Zeigler (1953) and Natta (1955) discovered that in the presence of a combination of transition metal halides like TCl4, ZnBr3 etc, with an organometallic compound like triethyl-aluminium or trimethyl-aluminium, stereospecific polymerisation can be carried out.
Combination of metal halides and organometallic compounds are called Zeigler Natta catalyst.
Dental polymer part 1
All details about the dental polymer
Components and Composition
Molecular Weight
Polydispersity
Structure Of Polymer
Mechanical And Physical Properties Of Polymer,
Rheometric Properties
Solvation and dissolution Properties
Thermal Properties
Requirement Of Dental Resins
Dental Use Of Resins
Effect of polymer structural factors on the mechanical properties
This document discusses how various structural factors affect the mechanical properties of polymers. It examines the effects of molecular weight, cross-linking, crystallinity, polarity, copolymerization, and steric factors. Higher molecular weight, cross-linking density, crystallinity, and polarity generally increase the glass transition temperature and modulus. Crystallinity has a more pronounced effect above the glass transition temperature. Copolymerization can result in properties between the homopolymers or phase separation depending on the type of copolymer. Long flexible side chains decrease properties while branched side chains increase them.
Polymers
This document provides an overview of polymers, including:
- Polymers are large molecules made by linking repeating units called monomers. Naturally occurring polymers have been used for thousands of years, while artificial polymers were developed more recently after WWII.
- Polymers can be classified based on their source, thermal behavior, chemical structure, stereochemistry, and end use. Important types include thermoplastics, thermosets, homopolymers, copolymers, fibers, and plastics.
- Polymer properties depend on factors like strength, crystallinity, elasticity, and glass transition temperature which are influenced by the polymer structure. Common characterization techniques and molding processes like injection molding are also discussed.
Polymer behaviour in solution & effect of molecular weight in polymer
Polymer chains of varying molecular weights exhibit different behaviors in solution. Higher molecular weight polymers swell more before dissolving and produce highly viscous solutions even at low concentrations. Their long, entangled chains confer properties like high strength, impact resistance, and chemical resistance. Lower molecular weight polymers dissolve immediately and yield low viscosity solutions. Their short chains act as plasticizers and impart softness, flexibility, and increased molecular mobility. A polymer's molecular weight determines the length of its chains and significantly impacts its solution behavior and material properties.
Mechanism of adhesion.pptx
This document discusses the mechanism and theories of adhesive bonding. It describes three main theories:
1. Mechanical theory - adhesion occurs through mechanical interlocking of the adhesive in surface irregularities of the adherends.
2. Diffusion theory - adhesion results from diffusion and entanglement of polymer chains at the interface between compatible adhesive and adherend materials.
3. Adsorption theory - adhesion is due to secondary bonding forces that develop at the adhesive-adherend interface through wetting and thermodynamic adsorption processes.
59a1 polymer matrix composites
The document discusses different types of polymer matrix composites, including thermoset and thermoplastic matrices. It covers various processing techniques for both such as hand layup, filament winding, injection molding. Key properties of the polymer matrix are outlined like protecting reinforcement, transferring load, impact resistance. Common reinforcements include glass, carbon fibers while resins often used are epoxy, polyester.
Polymer matrix composites
The document discusses different types of polymer matrix composites, including thermoset and thermoplastic matrices. It covers various processing techniques for composites such as hand layup, filament winding, and injection molding. Key topics include the properties and applications of polymer composites as well as the effects of temperature on thermoplastic polymers.
Lecture: Microstructures in polymers
Lecture notes on Structure and Properties of Engineering Polymers
Course Objectives:
The main objective is to introduce polymers as an engineering material and emphasize the basic concepts of their nature, production and properties. Polymers are introduced at three levels; namely, the molecular level, the micro level, and macro-level. Through knowledge of all three levels, student can understand and predict the properties of various polymers and their performance in different products. The course also aims at introducing the students to the principles of polymer processing techniques and considerations of design using engineering polymers.
SUPERABSORBENT POLYMERS
The document discusses superabsorbent polymers, which are cross-linked polyelectrolytes that can absorb over 10 times their mass in water. They are used in disposable diapers, feminine hygiene products, and adult incontinence products to absorb liquids. The document covers the properties, manufacturing processes, and economic aspects of superabsorbent polymers. It describes how they are made by polymerizing acrylic acid and crosslinkers to form hydrogels, which are then dried, ground, and processed into powders. The global production of superabsorbent polymers in 2001 was over 1 million metric tons per year, with the majority used in disposable hygiene products.
CHAPTER 6 Strength, creep and fracture of polymers.ppt
This document discusses creep, recovery, and stress relaxation in polymers. It begins with an introduction to deformation mechanisms in polymers and factors that influence polymer strength. It then covers stress-strain curves in polymers and different deformation modes. Specific topics discussed in more detail include glassy polymers, semicrystalline polymers, viscous flow, creep in polymers, stress relaxation, creep failure of polymers, creep modulus, and factors that influence creep resistance in plastics. Examples are provided to illustrate concepts.
Theory of suspension
This document provides an overview of suspension theory. Key points include:
- A suspension is a dispersion of insoluble solid particles in a liquid medium, with particle sizes generally greater than 0.1μm.
- Particle characteristics like size, shape, surface properties, and electrical charges influence interactions and stability.
- Attractive van der Waals forces can cause flocculation while repulsive electrical double layer forces promote stability, as described by the DLVO theory.
- Additives are often needed to control particle interactions and maintain long-term stability of the suspension.
Properties of polymers
Polymers have both physical and mechanical properties. Some key physical properties include solubility in solvents, how they are affected by heat, and their ability to allow diffusion of molecules. Their mechanical properties include toughness, strength, and elasticity. Polymers dissolve in solvents and swell in size, while melting and decomposing at certain temperatures above room temperature. Their strength depends on factors like chain length and cross-linking, while their elasticity comes from their molecular structure.
Structure property relationship in polymer
This document discusses the relationship between polymer structure and properties such as solubility, glass transition temperature, thermal stability, and tensile strength. It explains that solubility decreases with longer branches or crosslinking. Glass transition temperature decreases with increased chain flexibility or bulky side groups but increases with crosslinking. Thermal stability is highest in polymers with aromatic or fluorine groups. Tensile strength follows the order branched < linear < crosslinked.
Thermoplastic and thermosetting polymers
Thermoplastic and thermosetting polymers can be differentiated based on their molecular structure and response to heat. Thermoplastics soften when heated and harden again when cooled, allowing them to be repeatedly melted and reshaped. Thermosets permanently harden when heated and cannot be remelted or reshaped. Some key applications of thermoplastics include car dashboards and toys, while thermosets are commonly used in electrical equipment and circuit boards due to their high heat resistance.
How many dance steps would the square have-and-Construct a multiplicat.docx
How many dance steps would the square have?and,Construct a multiplication table of all of the squre\'s dance stepes.this group is referred to as D4
please  do the construct
Solution
Main types of square dances:
US and Canada
1.Traditional square dance
2.Modern Western square dance (MWSD)
England
1.Playford
2.Folk dance
3.Ceilidhs
Ireland
1.ceili
2.set dancing
Scotland
1.scottish country dance
While the standard formation for a square dance is four couples in a square, there are many variations on the theme. These dances show some examples:
>Ninepins: a square with one extra person in the middle
>Winter Solstice: a square with one extra couple in the middle
>Hexitation: a square with two couples in each of the Head positions.
>Twelve Reel: a square with three people on each side, normally a man with a lady on either side of him.
Modern choreography also includes dances which morph from one form to another. There are contra dances and four couple longways sets which turn into a square dance part of the way through the dance and then back to the original formation.
Grid Squares are dances where the squares are arranged in a grid, sets carefully aligned across the room and up and down the room. The calls move dancers from one square to another in intricate patterns.
.
How has the physician-patient relationship changed over the past centu.docx
How has the physician-patient relationship changed over the past century? Are the changes good or bad for the delivery of quality healthcare?
Solution
How has the physician-patient relationship changed over the past century?
Rationing occurs when the physician decreases time spent with a patient, when decisions are made on withholding life support in terminal cases, and with regard to the availability of specialized equipment and specialized physicians.
Are the changes good or bad for the delivery of quality healthcare?
these are good because maximize savings, managed care has added new forms of rationing: rationing by delay, rationing by denial, and rationing by dilution
.
More Related Content
Similar to how do the different architectures of a polymer affect their propertie.docx
4. Introduction to PMC (1).pptx
This document discusses polymer matrix composites (PMCs). It defines PMCs and describes the two main types of polymer matrices: thermosets and thermoplastics. Thermosets cure irreversibly while thermoplastics can be remelted and reshaped. Common thermoset matrices include epoxies and unsaturated polyesters, while common thermoplastics include nylons and polyethylenes. The document also discusses different types of fillers/reinforcements like fibers, flakes and particulates that are added to polymers to improve mechanical properties. Finally, it examines different bonding mechanisms at the interface between the filler and matrix like mechanical, chemical, electrostatic and interdiffusion bonding that influence the
Impact Modification Of Thermoplastics
The document discusses various methods for improving the toughness of polymers, including rubber modification of thermoplastics. It describes how the inclusion of small, well-dispersed rubber particles can induce toughening mechanisms in a thermoplastic matrix like crazing, shear yielding, and cavitation. These particles prevent the growth of large cracks. Thermoplastic elastomers are also discussed as bimicrophasic materials that can be processed and recycled like thermoplastics but have rubber-like elasticity. Styrenic block copolymers and thermoplastic vulcanizates are provided as examples.
Textile raw material 1
The document discusses various topics related to textile raw materials including:
- Definitions of oligomer, monomer residue, living polymer, and dead polymer.
- Major uses of polymers in textiles such as elastomers, plastics, and fibers.
- Fiber morphology and its properties including surface contour, shape, fineness, and crimp.
- Different types of polymerization including addition, condensation, chain growth, and step growth polymerization.
- Characterization, degradation, and forces between polymers.
CHAPTER 5 behavior of polymers XX.ppt
This document discusses the properties of polymers. It begins by introducing the topics that will be covered, including physical, thermal, electrical, mechanical, thermo-mechanical, and chemical properties of polymers. It then provides details on various physical properties such as molecular weight and density. Thermal properties like glass transition temperature and melting point are explained. Factors that influence properties like mechanical strength and electrical conductivity of polymers are also described. The document aims to explain the different types of properties exhibited by polymers and factors that impact these properties.
Polymers .pdf
Polymers can be formed through addition polymerization or step-growth polymerization. They have various molecular structures that influence properties like crystallinity. Thermoplastics soften when heated while thermosets form permanent chemical bonds. Common polymers include polyethylene, polypropylene, polystyrene, and nylon. They are processed through methods like extrusion, injection molding, and thermoforming to make a wide range of products.
Methods of polymerisation
Methods of polymerisation It is also called as Zeigler – Natta polymerisation.
Zeigler (1953) and Natta (1955) discovered that in the presence of a combination of transition metal halides like TCl4, ZnBr3 etc, with an organometallic compound like triethyl-aluminium or trimethyl-aluminium, stereospecific polymerisation can be carried out.
Combination of metal halides and organometallic compounds are called Zeigler Natta catalyst.
Dental polymer part 1
All details about the dental polymer
Components and Composition
Molecular Weight
Polydispersity
Structure Of Polymer
Mechanical And Physical Properties Of Polymer,
Rheometric Properties
Solvation and dissolution Properties
Thermal Properties
Requirement Of Dental Resins
Dental Use Of Resins
Effect of polymer structural factors on the mechanical properties
This document discusses how various structural factors affect the mechanical properties of polymers. It examines the effects of molecular weight, cross-linking, crystallinity, polarity, copolymerization, and steric factors. Higher molecular weight, cross-linking density, crystallinity, and polarity generally increase the glass transition temperature and modulus. Crystallinity has a more pronounced effect above the glass transition temperature. Copolymerization can result in properties between the homopolymers or phase separation depending on the type of copolymer. Long flexible side chains decrease properties while branched side chains increase them.
Polymers
This document provides an overview of polymers, including:
- Polymers are large molecules made by linking repeating units called monomers. Naturally occurring polymers have been used for thousands of years, while artificial polymers were developed more recently after WWII.
- Polymers can be classified based on their source, thermal behavior, chemical structure, stereochemistry, and end use. Important types include thermoplastics, thermosets, homopolymers, copolymers, fibers, and plastics.
- Polymer properties depend on factors like strength, crystallinity, elasticity, and glass transition temperature which are influenced by the polymer structure. Common characterization techniques and molding processes like injection molding are also discussed.
Polymer behaviour in solution & effect of molecular weight in polymer
Polymer chains of varying molecular weights exhibit different behaviors in solution. Higher molecular weight polymers swell more before dissolving and produce highly viscous solutions even at low concentrations. Their long, entangled chains confer properties like high strength, impact resistance, and chemical resistance. Lower molecular weight polymers dissolve immediately and yield low viscosity solutions. Their short chains act as plasticizers and impart softness, flexibility, and increased molecular mobility. A polymer's molecular weight determines the length of its chains and significantly impacts its solution behavior and material properties.
Mechanism of adhesion.pptx
This document discusses the mechanism and theories of adhesive bonding. It describes three main theories:
1. Mechanical theory - adhesion occurs through mechanical interlocking of the adhesive in surface irregularities of the adherends.
2. Diffusion theory - adhesion results from diffusion and entanglement of polymer chains at the interface between compatible adhesive and adherend materials.
3. Adsorption theory - adhesion is due to secondary bonding forces that develop at the adhesive-adherend interface through wetting and thermodynamic adsorption processes.
59a1 polymer matrix composites
The document discusses different types of polymer matrix composites, including thermoset and thermoplastic matrices. It covers various processing techniques for both such as hand layup, filament winding, injection molding. Key properties of the polymer matrix are outlined like protecting reinforcement, transferring load, impact resistance. Common reinforcements include glass, carbon fibers while resins often used are epoxy, polyester.
Polymer matrix composites
The document discusses different types of polymer matrix composites, including thermoset and thermoplastic matrices. It covers various processing techniques for composites such as hand layup, filament winding, and injection molding. Key topics include the properties and applications of polymer composites as well as the effects of temperature on thermoplastic polymers.
Lecture: Microstructures in polymers
Lecture notes on Structure and Properties of Engineering Polymers
Course Objectives:
The main objective is to introduce polymers as an engineering material and emphasize the basic concepts of their nature, production and properties. Polymers are introduced at three levels; namely, the molecular level, the micro level, and macro-level. Through knowledge of all three levels, student can understand and predict the properties of various polymers and their performance in different products. The course also aims at introducing the students to the principles of polymer processing techniques and considerations of design using engineering polymers.
SUPERABSORBENT POLYMERS
The document discusses superabsorbent polymers, which are cross-linked polyelectrolytes that can absorb over 10 times their mass in water. They are used in disposable diapers, feminine hygiene products, and adult incontinence products to absorb liquids. The document covers the properties, manufacturing processes, and economic aspects of superabsorbent polymers. It describes how they are made by polymerizing acrylic acid and crosslinkers to form hydrogels, which are then dried, ground, and processed into powders. The global production of superabsorbent polymers in 2001 was over 1 million metric tons per year, with the majority used in disposable hygiene products.
CHAPTER 6 Strength, creep and fracture of polymers.ppt
This document discusses creep, recovery, and stress relaxation in polymers. It begins with an introduction to deformation mechanisms in polymers and factors that influence polymer strength. It then covers stress-strain curves in polymers and different deformation modes. Specific topics discussed in more detail include glassy polymers, semicrystalline polymers, viscous flow, creep in polymers, stress relaxation, creep failure of polymers, creep modulus, and factors that influence creep resistance in plastics. Examples are provided to illustrate concepts.
Theory of suspension
This document provides an overview of suspension theory. Key points include:
- A suspension is a dispersion of insoluble solid particles in a liquid medium, with particle sizes generally greater than 0.1μm.
- Particle characteristics like size, shape, surface properties, and electrical charges influence interactions and stability.
- Attractive van der Waals forces can cause flocculation while repulsive electrical double layer forces promote stability, as described by the DLVO theory.
- Additives are often needed to control particle interactions and maintain long-term stability of the suspension.
Properties of polymers
Polymers have both physical and mechanical properties. Some key physical properties include solubility in solvents, how they are affected by heat, and their ability to allow diffusion of molecules. Their mechanical properties include toughness, strength, and elasticity. Polymers dissolve in solvents and swell in size, while melting and decomposing at certain temperatures above room temperature. Their strength depends on factors like chain length and cross-linking, while their elasticity comes from their molecular structure.
Structure property relationship in polymer
This document discusses the relationship between polymer structure and properties such as solubility, glass transition temperature, thermal stability, and tensile strength. It explains that solubility decreases with longer branches or crosslinking. Glass transition temperature decreases with increased chain flexibility or bulky side groups but increases with crosslinking. Thermal stability is highest in polymers with aromatic or fluorine groups. Tensile strength follows the order branched < linear < crosslinked.
Thermoplastic and thermosetting polymers
Thermoplastic and thermosetting polymers can be differentiated based on their molecular structure and response to heat. Thermoplastics soften when heated and harden again when cooled, allowing them to be repeatedly melted and reshaped. Thermosets permanently harden when heated and cannot be remelted or reshaped. Some key applications of thermoplastics include car dashboards and toys, while thermosets are commonly used in electrical equipment and circuit boards due to their high heat resistance.
Similar to how do the different architectures of a polymer affect their propertie.docx (20)
Effect of polymer structural factors on the mechanical properties
Effect of polymer structural factors on the mechanical properties
Polymer behaviour in solution & effect of molecular weight in polymer
Polymer behaviour in solution & effect of molecular weight in polymer
CHAPTER 6 Strength, creep and fracture of polymers.ppt
CHAPTER 6 Strength, creep and fracture of polymers.ppt
More from cliftonl1
How many dance steps would the square have-and-Construct a multiplicat.docx
How many dance steps would the square have?and,Construct a multiplication table of all of the squre\'s dance stepes.this group is referred to as D4
please  do the construct
Solution
Main types of square dances:
US and Canada
1.Traditional square dance
2.Modern Western square dance (MWSD)
England
1.Playford
2.Folk dance
3.Ceilidhs
Ireland
1.ceili
2.set dancing
Scotland
1.scottish country dance
While the standard formation for a square dance is four couples in a square, there are many variations on the theme. These dances show some examples:
>Ninepins: a square with one extra person in the middle
>Winter Solstice: a square with one extra couple in the middle
>Hexitation: a square with two couples in each of the Head positions.
>Twelve Reel: a square with three people on each side, normally a man with a lady on either side of him.
Modern choreography also includes dances which morph from one form to another. There are contra dances and four couple longways sets which turn into a square dance part of the way through the dance and then back to the original formation.
Grid Squares are dances where the squares are arranged in a grid, sets carefully aligned across the room and up and down the room. The calls move dancers from one square to another in intricate patterns.
.
How has the physician-patient relationship changed over the past centu.docx
How has the physician-patient relationship changed over the past century? Are the changes good or bad for the delivery of quality healthcare?
Solution
How has the physician-patient relationship changed over the past century?
Rationing occurs when the physician decreases time spent with a patient, when decisions are made on withholding life support in terminal cases, and with regard to the availability of specialized equipment and specialized physicians.
Are the changes good or bad for the delivery of quality healthcare?
these are good because maximize savings, managed care has added new forms of rationing: rationing by delay, rationing by denial, and rationing by dilution
.
How is treasury stock shown on the balance sheet- Treasury stock is no.docx
How is treasury stock shown on the balance sheet?
Treasury stock is not shown on the balance sheet.
Solution
Option B => As a decrease in stockholders\' equity
Because treasury stock represents that stock bought back. hence, they are no more outstanding
.
How is repetition of components different from redundancy- How are the.docx
How is repetition of components different from redundancy? How are the design principles of redundancy and simplicity related to one another and the concept of dependencies?
Solution
As nouns the difference between repetition and redundancy
is that repetition is the act or an instance of repeating or being repeated while redundancy is the state of being redundant; a superfluity; something redundant or excessive; a needless repetition in language; excessive wordiness.
Simplicity – not so much as the opposite principle to complexity, but rather the characteristic of a simplicity of operation and design so that the system\'s performance and interaction with other related system elements can be easily understood;
Redundancy – the system, or parts of it, should be designed so that it can be backed-up by other redundant parts, or have its parts/modules easily replaced by cannibalising less important parts of the same or other systems to keep it functioning;
.
How is communication a part of best practices-Solution4 Leadership Bes.docx
How is communication a part of best practices?
Solution
4 Leadership Best Practices for Increasing Engagement Through Communications
1. Encourage Employees to Be Vocal
One best practice managers can utilize to enhance communication involves encouraging employees to be vocal. Leaders should make themselves available to employees. When dialogue occurs between supervisors and their team members, active listening should be the norm.
Encourage employees to ask questions and get clarification for anything they do not understand. When employees realize managers want to talk to them and answer questions, they will be more willing to ask. Misunderstandings will decrease, and Engagement will rise.
Managers should consider how to present each of their messages in the most clear, informative, and interesting way, thus encouraging employees to listen. Information and updates will be more valuable when presented frequently and concisely, such as after staff meetings.
With constant communication, employees will not be overwhelmed by a sudden influx of new information, and will be better able to understand the messages presented. Regular meetings and check-ins should be established as well to keep the dialogue flowing.
2. Promote Honesty & Accountability
Another best practice to enhance Communication includes being honest and accountable. Managers and leadership should make sure they are always truthful when speaking with employees. They should hold themselves responsible for promises made. Do not make promises that cannot be kept.
If an issue arises preventing execution, inform employees as soon as possible, and present an alternative to resolve this issue. Otherwise, employees
.
How does the National Society of Professional Engineers Code of Ethics.docx
How does the National Society of Professional Engineers Code of Ethics promote safety, health and welfare to the public? (2 - 3 paragraphs)
Solution
Preamble
Engineering is an important and learned profession. As members of this profession, engineers are expected to exhibit the highest standards of honesty and integrity. Engineering has a direct and vital impact on the quality of life for all people. Accordingly, the services provided by engineers require honesty, impartiality, fairness, and equity, and must be dedicated to the protection of the public health, safety, and welfare. Engineers must perform under a standard of professional behavior that requires adherence to the highest principles of ethical conduct.
I. Fundamental Canons
Engineers, in the fulfillment of their professional duties, shall:
Hold paramount the safety, health, and welfare of the public.
Perform services only in areas of their competence.
Issue public statements only in an objective and truthful manner.
Act for each employer or client as faithful agents or trustees.
Avoid deceptive acts.
Conduct themselves honorably, responsibly, ethically, and lawfully so as to enhance the honor, reputation, and usefulness of the profession.
II. Rules of Practice
Engineers shall hold paramount the safety, health, and welfare of the public.
much more ate web page
III. Professional Obligations
.
how does cinchona catalyst workSolutionCatalyst working- 1) Catalyst i.docx
how does cinchona catalyst work
Solution
Catalyst working:
1) Catalyst increase the rate of reaction
2) To turn reactants into products activation energy is required.
3) If molecules do no posses enough energy when they collide they will not react.
4) A catalyst provides an alternative route for the reaction to take place with a lower activation energy.
Cinchonine find their main application in the field of organic chemistry in the synthesis of enantiomerically pure compounds, where quinine and quinidine are also widely used. As chiral bases, they have been employed as resolving agents for acids through preparation and subsequent separation of diastereomeric salts, in chiral chromatography and as chiral ligands for asymmetric synthesis.Cinchona alkaloids have been described as “privileged chiral ligands and catalysts†with the presence of the basic tertiary quinuclidine nitrogen the key to their synthetic utility.
1) Cinchona Alkaloids Are Versatile Catalysts.These are just a few of the reactions that can be performed asymmetrically.
2) Cinchona Alkaloids have been explored in asymmetric synthesis
3) Cinchona Alkaloids as Phase Transfer Catalysts(PTC)
.
How does the evolution of attack tools affect existing systems- What s.docx
How does the evolution of attack tools affect existing systems? What steps should an organization take to remain vigilant of these new methods for compromising systems?   (Cybersecurity)
Solution
Answer:-
On securing information , there are tools and techniques .Tools effectively seek to mitigate outdated barriers to sensitive administrative data in an effort to compromise trade secrets ,private information and other intellectual property .Moreover,it is important that the organization remain aware of the everchange threats that emerge on an almost immediate basis . this is especially true when conducting periodic system reviews and final system reviews, desingers can then address and install new security guidelines for the different software components that may be particularly vulnerable to new threats .Mapping the security of the system through devlopment , analyzing and documenting zero day attacks and encompassing such attacks in your red teams attack map for penetration testing
some of the steps an organization can take in ensuring a secure software system . keeping up to date with the latest attack tools and utilizing these tools to continuously test the security posture of the software system allow organization
.
How do you think the DATA Act will impact governmental entities and st.docx
How do you think the DATA Act will impact governmental entities and stakeholders?
I\'m not looking for political arguments.
Solution
By replacing inaccessible documents with standardized, searchable data--freely accessible to all--the DATA Act will create better accountability for taxpayers and citizens; improve federal management by illuminating waste and fraud; and reduce compliance costs by automating the creation of reports by grantees and contractors.
Better accountability . Once federal financial statements, budget actions, grant reports, and contract reports are available as open data, rather than trapped in inaccessible documents, tech companies will be able to make the data fully searchable for citizens, taxpayers, and companies
More effective federal management . Government-wide data standards for spending will allow Big Data analytics to illuminate waste and fraud. Coaltion members showed how at the DATA Demo Day on Capitol Hill in May 2013.
Automated compliance . When federal agencies begin collecting grant and contract reports as standardized data instead of as documents, solutions like Parrascope and AmpliFund will help grantees and contractors comply with existing reporting requirements more cheaply than they can today.
.
How do I determine the Rf Value with just the information I have provi.docx
How do I determine the Rf Value with just the information I have provided?
As for the Ion, are they looking for a poistive or negative answer?
Rf= distance traveled by component/distance traveled by the solvent
I just took a piece out of my homework so I can complete the rest Hopefully I will learn and then know what I am doing.
Results Data Table for Unknown A Distance Solvent Traveled (cm) 7.0 Spot Color Distance Traveled (cm) 1.3 *Rf Calculated lon Present Unknown A Component 1 Unknown A Component 2 Brown with light spots Brown with light spots 4.6 4.9 Unknown A Component 3 Brown with light spots
Solution
For unknown A component 1: R f = (1.3 cm) / (7.0 cm) = 0.186 or 0.19
For unknown A component 2: R f = (4.6 cm) / (7.0 cm) = 0.657 or 0.66
For unknown A component 3: R f = (4.9 cm) / (7.0 cm) = 0.7
For the \'ion present\' column, it is being asked what ion is present in the unknown A which is determined by referencing to the R f values of the known compound and it\'s components.
For example, first you are given a known compound having a ion (say given compound is NaCl which we know it contains Na + ions). Now paper chromatography for NaCl is done and R f values are calculated & noted for Na + ion. Now in second experiment you are given an unknown compound and you perform the paper chromatography and calculate the R f values. If R f value of Na + (from first experiment of known) matches with the R f value of unknown (from second experiment) then we can say that unknown compound contains Na + . This Na + is the ion which is being asked as \'ion present\'.
.
How do I print a list of payroll checks for the calendar year to date.docx
How do I print a list of payroll checks for the calendar year to date sorted by net pay from largest to smallest. The list should include the following columns from left to right: employee name (Employee), net pay (Amount), date, and paid through. Please explain the steps my textbook doesn\'t explain how to do this and it\'s really frustrating.
Solution
1. Gather employee wage information. Make sure it includes all wages, tips and compensation in the pay period.
2. Check to ensure that you have W-4 information for each employee to determine their marital status and withholdings. This will determine their tax liability for Federal Income Tax.
3. Calculate employee\'s gross pay from employment agreement or time sheet. Include tips, commission and overtime, if applicable.
4. Determine withholding amount for Federal Income Tax. Go to the IRS Publication 15 (Circular E). Choose either the Percentage Method or the Wage Bracket Method and use the appropriate chart.
5. Calculate employee amounts for Social Security Taxes.
6.Calculate employee contributions for Medicare Tax.
7.Determine state and local tax liabilities based on your locality.
8.Deduct additional employee items such as retirement and savings plans, health insurance, charitable contributions or garnishments.
9.Process payroll manually or through your selected system.
.
How does SO2 in the atmosphere affect global warming- In general- what.docx
How does SO 2 in the atmosphere affect global warming?   In general, what are the consequences of SO 2 in the atmosphere? (This should be current (no older than 5 yrs. old) since our understanding has improved in the last 5 yrs. or so. In discussing general consequences, please make sure to include acid rain and an explanation of what it is.)
Solution
Sulfur dioxide (SO 2 ) is a colourless gas with a sharp, irritating odour. It is produced by burning fossil fuels and by the smelting of mineral ores that contain sulfur.
However, SO2 oxidizes to H2SO4, which gets involved with aqueous chemistry and often leads to sulfate (SO4). Sulfate is an aerosol that will reflect sunlight (like many aerosols) and block energy input to the Earth. If you increase the amount of sunlight being reflected back to space (reducing the amount of sunlight absorbed by the surface of the Earth), there is a net cooling affect.
Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain. Sulfur dioxide and nitrogen oxides dissolve very easily in water and can be carried very far by the wind. As a result, the two compounds can travel long distances where they become part of the rain, sleet, snow, and fog that we experience on certain days.
.
How does an awareness of the historical link between the United States.docx
How does an awareness of the historical link between the United States and China help explain the current relationship between the two countries? (Please do not copy/paste irrelevant information, I will report it)
Solution
Answer The us and china historical link helped in many ways like laws in both countries passed after taking into consideration the effectiveness of laws in one another country.
The foundation of US and China relationship is based on Trade, Faith and Freedom which can be demonstrated with help of below examples:
1 . Americans have been interested in China for a long time. In 1784, when the American War for Independence was barely over, the first ship to sail under an American flag left New York. It was the merchant ship Empress of China , bound for Canton (now Guangdong), China.
At first, the American interest in China was economic. Americans were looking for new markets to buy goods, as the British refused to deal with Americans. And the Chinese preferred to work with Americans, who bought Chinese goods. The Europeans only wanted to sell them things.
By the middle of the 19th century, though, the relationship had grown. American churches led the way, seeking converts to Christianity among China
.
How do you utilize PM software to manage team activities-SolutionProje.docx
How do you utilize PM software to manage team activities?
Solution
Project Management is the process and activity of planning, organizing, motivating, and controlling resources, procedures and protocols to achieve specific goals in scientific or daily problems. A project is a temporary endeavor designed to produce a unique product, service or result with a defined beginning and end (usually time-constrained, and often constrained by funding or deliverables),undertaken to meet unique goals and objectives typically to bring about beneficial change or added value. The temporary nature of projects stands in contrast with business as usual (or operations), [4] which are repetitive, permanent, or semi-permanent functional activities to produce products or services. In practice, the management of these two systems is often quite different, and as such requires the development of distinct technical skills and management strategies.
The primary challenge of project management is to achieve all of the project goalsand objectives while honoring the preconceived constraints. The primary constraints are scope, time, quality and budget. The secondary
.
How do phospholipid bilayers maintain specific concentrations of solut.docx
How do phospholipid bilayers maintain specific concentrations of solutes inside and outside the cell? a. The interior of the bilayer is packed too tightly for any molecule to pass through b. The interior of the bilayer is too hydrophobic for charged or polar groups to pass The interior of the bilayer is solid-like preventing anything from passing through The exterior of the bilayer is too charged for any solute to get close The exterior of the bilayer is too hydrophobic for any charged or polar group to get close c. d. e.
Solution
The phospholipids in the plasma membranes are arranged in two layers, called a phospholipid bilayer. Each phospholipid molecule has a head and two tails. The head is hydrophilic, that is, it loves water and points outward. The tails are hydrophobic and these water hating tails are on the interior of the membrane.
Molecules that are hydrophobic can easily pass through the plasma membrane because they are water hating like the interior of the cell. Charged or polar groups acts as hydrophilic substances so they do not pass through the plasma membrane because they are water loving like the exterior of the membrane. So they are excluded from the interior of the membrane.
So option (b) is correct .
.
how would a police department exhibit different structure and procedur.docx
how would a police department exhibit different structure and procedures under the crime control model than it would under the due process model?
Solution
Two models of crime: the due process model and the crime control model posses their own advantages and disadvantages
Due process model provides an each and every people have equal rights and they cannot be underprivileged of life, liberty, or property without proper legal procedures. When people are arrested due to a crime then also they have their own rights such that they does not harm anyone and it is facilitated by Due process model.
There are various dissimilarities in-between the due process model and the crime control model:
The due process model thinks that people who are arrested by means of any event there ma be a chance that particular person doesnot do it anything and somebody involve him in this case. So he will be protected until it was proven and statement should be given by the court. Where as the Crime Control Model Process states tha the person who was arrested is right person who has done all those crimes so that particular person must be punished accordingly with respect to the safty of the remaining public.
Crime control system believes that if it had done by maintaining the Due process it will take long l
But the due process has equal rights to all the people because in some situations the people who did not do the crime also has a chance that somebody involve them into this crime. So we have to give chance to prove themselves that they are not accused so generally the court fallowes the due process model that says that every one are equal before the law.
.
How will you close your knowledge gap- Is your mind geared to re-think.docx
How will you close your knowledge gap, Is your mind geared to re-think what you think you know?
Solution
The knowledge gap theory was first proposed by Tichenor, Donohue and Olien at the University of Minnesota in the 70s. They believe that the increase of information in society is not evenly acquired by every member of society: people with higher socioeconomic status tend to have better ability to acquire information (Weng, S.C. 2000). This leads to a division of two groups: a group of better-educated people who know more about most things, and those with low education who know less. Lower socio-economic status (SES) people, defined partly by educational level, have little or no knowledge about public affairs issues, are disconnected from news events and important new discoveries, and usually aren’t concerned about their lack of knowledge.
Core Assumptions and Statements
The knowledge gap can result in an increased gap between people of lower and higher socioeconomic status. The attempt to improve people’s life with information via the mass media might not always work the way this is planned. Mass media might have the effect of increasing the difference gap between members of social classes.
.
How to do web application testing on a website checking it-'s (Functio.docx
Web application testing checks a website's functionality, interface usability, compatibility, performance and security. This involves testing links, forms, databases, cookies and the site's ability to function properly, be accessible, handle traffic loads and protect user security. Specific tests include checking internal and external links, field validation, error messages, optional/mandatory fields, database integrity, temporary internet files, the interface, compatibility across browsers and devices, response times under different loads, and vulnerability to common attacks.
How to make a Mic 1 L2 instruction set that takes in user input throug.docx
How to make a Mic 1 L2 instruction set that takes in user input through a Mic1 simulator for both multiply and divide and give out the answer and the divide include both output and any remainder.
Solution
.main //taking inputs for performing multiplication //for taking first input for multiplication IN // request character input from memory DUP // duplicate top of stack (inputed char) for comparing BIPUSH 0x0 // push 0x0 for comparison //for taking second input for multiplication IN // request character input from memory DUP // duplicate top of stack (inputed char) for comparing BIPUSH 0x0 // push 0x0 for comparison //for multiplying IMULT //output of multiplication OUT //taking inputs for performing division //for taking first input for division IN // request character input from memory DUP // duplicate top of stack (inputed char) for comparing BIPUSH 0x0 // push 0x0 for comparison //for taking second input for division IN // request character input from memory DUP // duplicate top of stack (inputed char) for comparing BIPUSH 0x0 // push 0x0 for comparison //for multiplying IDIVI //output of division i.e, quotient OUT //output of division i.e, remainder OUT DONE: HALT .end-main
.
HOW they got -1-78 ----------------- Assignment Brief Day 1- They-'ve.docx
HOW they got -1.78 ?????????????????
Assignment Brief Day 1: They\'ve left me\' Melanie, gasps to herself as she lies prone in the rust. Whilst out collecting rock samples with her colleagues a sudden Martian storm blew over the landing ground. Melanie was struck by a piece of flying debris and rendered unconscious without any means of communicating with her colleagues. Her c????? es were forced to leave the planet, believing Melanie to have perished. This is just like that bloody film starring Matt Damon\', Melanie thought to herself as she sat upright. Well I may as well get to growing potatoes in my own waste and producing water from left over jet fuel...\' Melanie resolved to forget the whole unpleasant experience of being left for dead on Mars whilst she ran combustion calculations in the hope of generating drinking water. Hydrazine (N2H4) is a fuel that undergoes chemical reactions to split into nitrogen gas (N2) and hydrogen gas (H2) through several processes. The liberated Hydrogen gas may then be reacted with oxygen to produce water. Melanie creates a device to receive a mixture with molar analysis 3/11 N2 and 8/11 H2 at 298 [K] and i atmosphere. This combination is then mixed with x (110-150) %] theoretical air from the habitat. The relevant thermodynamic properties are found from Melanie\'s computer, she assumes a constant heat capacity for all species (Table 1):
Solution
Solution:
There is error in that equation it is not 1.78 but it is 1.68 as shown below,
1.91 - 0.273(100%/120%) = 1.6825 = 1.68
so change it to 1.68
.
More from cliftonl1 (20)
How many dance steps would the square have-and-Construct a multiplicat.docx
How many dance steps would the square have-and-Construct a multiplicat.docx
How has the physician-patient relationship changed over the past centu.docx
How has the physician-patient relationship changed over the past centu.docx
How is treasury stock shown on the balance sheet- Treasury stock is no.docx
How is treasury stock shown on the balance sheet- Treasury stock is no.docx
How is repetition of components different from redundancy- How are the.docx
How is repetition of components different from redundancy- How are the.docx
How is communication a part of best practices-Solution4 Leadership Bes.docx
How is communication a part of best practices-Solution4 Leadership Bes.docx
How does the National Society of Professional Engineers Code of Ethics.docx
How does the National Society of Professional Engineers Code of Ethics.docx
how does cinchona catalyst workSolutionCatalyst working- 1) Catalyst i.docx
how does cinchona catalyst workSolutionCatalyst working- 1) Catalyst i.docx
How does the evolution of attack tools affect existing systems- What s.docx
How does the evolution of attack tools affect existing systems- What s.docx
How do you think the DATA Act will impact governmental entities and st.docx
How do you think the DATA Act will impact governmental entities and st.docx
How do I determine the Rf Value with just the information I have provi.docx
How do I determine the Rf Value with just the information I have provi.docx
How do I print a list of payroll checks for the calendar year to date.docx
How do I print a list of payroll checks for the calendar year to date.docx
How does SO2 in the atmosphere affect global warming- In general- what.docx
How does SO2 in the atmosphere affect global warming- In general- what.docx
How does an awareness of the historical link between the United States.docx
How does an awareness of the historical link between the United States.docx
How do you utilize PM software to manage team activities-SolutionProje.docx
How do you utilize PM software to manage team activities-SolutionProje.docx
How do phospholipid bilayers maintain specific concentrations of solut.docx
How do phospholipid bilayers maintain specific concentrations of solut.docx
how would a police department exhibit different structure and procedur.docx
how would a police department exhibit different structure and procedur.docx
How will you close your knowledge gap- Is your mind geared to re-think.docx
How will you close your knowledge gap- Is your mind geared to re-think.docx
How to do web application testing on a website checking it-'s (Functio.docx
How to do web application testing on a website checking it-'s (Functio.docx
How to make a Mic 1 L2 instruction set that takes in user input throug.docx
How to make a Mic 1 L2 instruction set that takes in user input throug.docx
HOW they got -1-78 ----------------- Assignment Brief Day 1- They-'ve.docx
HOW they got -1-78 ----------------- Assignment Brief Day 1- They-'ve.docx
Recently uploaded
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
Physical pharmaceutics notes for B.pharm students
Elevate Your Nonprofit's Online Presence_ A Guide to Effective SEO Strategies...
Whether you're new to SEO or looking to refine your existing strategies, this webinar will provide you with actionable insights and practical tips to elevate your nonprofit's online presence.
Leveraging Generative AI to Drive Nonprofit Innovation
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
Benner "Expanding Pathways to Publishing Careers"
This presentation was provided by Rebecca Benner, Ph.D., of the American Society of Anesthesiologists, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.
Mule event processing models | MuleSoft Mysore Meetup #47
Mule event processing models | MuleSoft Mysore Meetup #47
Event Link:- https://meetups.mulesoft.com/events/details/mulesoft-mysore-presents-mule-event-processing-models/
Agenda
● What is event processing in MuleSoft?
● Types of event processing models in Mule 4
● Distinction between the reactive, parallel, blocking & non-blocking processing
For Upcoming Meetups Join Mysore Meetup Group - https://meetups.mulesoft.com/mysore/YouTube:- youtube.com/@mulesoftmysore
Mysore WhatsApp group:- https://chat.whatsapp.com/EhqtHtCC75vCAX7gaO842N
Speaker:-
Shivani Yasaswi - https://www.linkedin.com/in/shivaniyasaswi/
Organizers:-
Shubham Chaurasia - https://www.linkedin.com/in/shubhamchaurasia1/
Giridhar Meka - https://www.linkedin.com/in/giridharmeka
Priya Shaw - https://www.linkedin.com/in/priya-shaw
Wound healing PPT
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
Educational Technology in the Health Sciences
Plenary presentation at the NTTC Inter-university Workshop, 18 June 2024, Manila Prince Hotel.
HYPERTENSION - SLIDE SHARE PRESENTATION.
IT WILL BE HELPFULL FOR THE NUSING STUDENTS
IT FOCUSED ON MEDICAL MANAGEMENT AND NURSING MANAGEMENT.
HIGHLIGHTS ON HEALTH EDUCATION.
Geography as a Discipline Chapter 1 __ Class 11 Geography NCERT _ Class Notes...
Geography as discipline
A Visual Guide to 1 Samuel | A Tale of Two Hearts
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
How Barcodes Can Be Leveraged Within Odoo 17
In this presentation, we will explore how barcodes can be leveraged within Odoo 17 to streamline our manufacturing processes. We will cover the configuration steps, how to utilize barcodes in different manufacturing scenarios, and the overall benefits of implementing this technology.
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...
The recent surge in pro-Palestine student activism has prompted significant responses from universities, ranging from negotiations and divestment commitments to increased transparency about investments in companies supporting the war on Gaza. This activism has led to the cessation of student encampments but also highlighted the substantial sacrifices made by students, including academic disruptions and personal risks. The primary drivers of these protests are poor university administration, lack of transparency, and inadequate communication between officials and students. This study examines the profound emotional, psychological, and professional impacts on students engaged in pro-Palestine protests, focusing on Generation Z's (Gen-Z) activism dynamics. This paper explores the significant sacrifices made by these students and even the professors supporting the pro-Palestine movement, with a focus on recent global movements. Through an in-depth analysis of printed and electronic media, the study examines the impacts of these sacrifices on the academic and personal lives of those involved. The paper highlights examples from various universities, demonstrating student activism's long-term and short-term effects, including disciplinary actions, social backlash, and career implications. The researchers also explore the broader implications of student sacrifices. The findings reveal that these sacrifices are driven by a profound commitment to justice and human rights, and are influenced by the increasing availability of information, peer interactions, and personal convictions. The study also discusses the broader implications of this activism, comparing it to historical precedents and assessing its potential to influence policy and public opinion. The emotional and psychological toll on student activists is significant, but their sense of purpose and community support mitigates some of these challenges. However, the researchers call for acknowledging the broader Impact of these sacrifices on the future global movement of FreePalestine.
Recently uploaded (20)
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
Elevate Your Nonprofit's Online Presence_ A Guide to Effective SEO Strategies...
Elevate Your Nonprofit's Online Presence_ A Guide to Effective SEO Strategies...
Leveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit Innovation
Mule event processing models | MuleSoft Mysore Meetup #47
Mule event processing models | MuleSoft Mysore Meetup #47
Juneteenth Freedom Day 2024 David Douglas School District
Juneteenth Freedom Day 2024 David Douglas School District
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
Geography as a Discipline Chapter 1 __ Class 11 Geography NCERT _ Class Notes...
Geography as a Discipline Chapter 1 __ Class 11 Geography NCERT _ Class Notes...
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...
how do the different architectures of a polymer affect their propertie.docx
- 1. how do the different architectures of a polymer affect their properties? Solution Polymers are affected by molecular weight and crystallinity. Linear polymers - single chains, flexible , van der Waals between molecules. Branched polymers - side branches , packing is less efficient, lower density,less crystalline than linear. Branching also affects chain entanglement, the ability of chains to slide past one another, in turn affecting the bulk physical properties. Long chain branches may increase polymer strength, toughness, and the glass transition temperature (T g ) due to an increase in the number of entanglements per chain. From an adsorption point-of-view, the bottle-brush homopolymers have the ability to attach to the surface through both side chain and backbone segments. If adsorption occurs through the attachment of the side chains on the surface, then the polymer attains a flat conformation at the interface since the gain in adsorption energy increases with the number of contact points between the side chain segments and the surface Dendrimers are a special case of branched polymer where every monomer unit is also a branch point. This tends to reduce intermolecular chain entanglement and crystallization. A related architecture, the dendritic polymer, are not perfectly branched but share similar properties to dendrimers due to their high degree of branching.