UAIPD 08-0019
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This document describes a novel process for fabricating conductive cellulose fiber composites using ionic liquids. The process uses ionic liquids as solvents to both dissolve cellulose fibers and polymerize pyrrole, allowing the effective impregnation of cellulose fibers and production of polypyrrole. This results in electrically conductive cellulose fiber composites with enhanced mechanical and conductive properties compared to other processing methods. Testing showed significant improvements in properties such as Fe(III) absorption and polypyrrole particle formation with increased pyrrole concentration. The inventors are Dr. Dan Daly, Dr. Rachel Frazier, and Dr. Scott Spear from the University of Alabama.
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This document discusses esthetic archwires made from fiber-reinforced composite materials. One promising approach is to embed ceramic fibers within a polymeric matrix to produce a tooth-colored archwire with mechanical properties similar to metallic wires. Studies have shown fiber-reinforced composite wires have mechanical properties and biocompatibility supporting their clinical viability. Pultrusion, a continuous molding process, allows precise control over fiber distribution and shape to fabricate archwire prototypes of varying stiffness. Experimental prototypes demonstrate esthetic, elastic and resilient properties making fiber-reinforced composites a potential alternative to conventional archwire materials.
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2) The students designed a humidity sensor using a polymer film that changes color with humidity.
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The document discusses polymers and several activities conducted with polymers. It then describes a design project to create a humidity sensor using a polymer film. It also outlines a project to develop self-healing electrical cables using a self-healing polymer. The polymer would be synthesized in the cable's outer layer to prevent cutting and maintain the cable's function for longer by protecting against electricity leakage. Testing is still needed to confirm the durability of this application, which could also be extended to other electrical equipment. In conclusion, polymers have various properties and uses that can help solve problems when applied in daily life.
polymers,anti-microbial medical gown,IDM15
1) The document outlines activities done by students exploring polymers, including changing polymer pellets, identifying polymers in products, and experiments on viscosity and strength of polymer films.
2) The students designed a humidity sensor using a polymer film that changes color with humidity.
3) They proposed developing an anti-microbial medical gown by adding an anti-microbial polymer to areas with most patient contact, to reduce microbial transmission and contamination. They hypothesized this polymer would improve gown properties and resistance to infection.
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This document discusses hybrid composite materials made from both natural and synthetic fibers to improve mechanical properties. It begins by introducing composite materials and their benefits of high strength and stiffness but lack of ductility. To address this, hybrid composites containing multiple fibers are proposed. Common hybrid configurations include interlayer, yarn-by-yarn, and layer-by-layer designs. Both natural fibers like jute, sisal, and kenaf and synthetic fibers like glass and carbon fibers are discussed. Chemical treatments are used to clean natural fibers and increase bonding to the polymer matrix. The mechanical properties of natural fiber composites are then evaluated based on previous studies, finding properties like strength and stiffness increase with higher fiber content or improved surface treatments
A Study on Mechanical Properties of E-Glass Polypropylene Epoxy and S-Glass P...
There are basic two phase of composite material, in which one is known as matrix material and another one is called reinforcing material. The reinforcing material is embedded over matrix material. The matrix material is continuous phase and reinforcing is discontinuous phase. The reinforcing phase is much harder than matrix phase. In composite material matrix phase removes the stresses between reinforcing phase and also protect from mechanical and environmental damage. The function of reinforcing material is to improve mechanical and thermal properties of composites. Composite are hybrid of two or more material such as reinforced polymer, metal or ceramics. The aim of the present work is to fabricate E-glass epoxy composite and S-glass epoxy composite with polypropylene as filler material. The fabricated laminates are then tested for mechanical properties with varying percentage of filler material. The results obtained for E-glass epoxy composite and S-glass epoxy composites are then compared. The composites with optimum results are recommended. Karthik A. S | Dr. S. V. Gorabal"A Study on Mechanical Properties of E-Glass Polypropylene Epoxy and S-Glass Polypropylene Epoxy Composites" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd15903.pdf http://www.ijtsrd.com/engineering/mechanical-engineering/15903/a-study-on-mechanical-properties-of-e-glass-polypropylene-epoxy-and-s-glass-polypropylene-epoxy-composites/karthik-a-s
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The document discusses an undergraduate synthetic biology competition called iGEM where students design and build biological systems from standard DNA parts. It then describes the Cornell iGEM team's project which aims to develop a biosensor using the bacterium Shewanella oneidensis for continuous monitoring of water quality near oil and gas extraction sites. The biosensor would detect environmental toxins like arsenic and naphthalene. The document provides details on the team's prototype device, goals for genetic modifications to the organism, and plans to partner with a company called Ecovative that produces biodegradable packaging alternatives.
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UAIPD 08-0019
This document describes a novel process for fabricating conductive cellulose fiber composites using ionic liquids. The process uses ionic liquids as solvents to both dissolve cellulose fibers and polymerize pyrrole, allowing the effective impregnation of cellulose fibers and production of polypyrrole. This results in electrically conductive cellulose fiber composites with enhanced mechanical and conductive properties compared to other processing methods. Testing showed significant improvements in properties such as Fe(III) absorption and polypyrrole particle formation with increased pyrrole concentration. The inventors are Dr. Dan Daly, Dr. Rachel Frazier, and Dr. Scott Spear from the University of Alabama.
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UAIPD 08-0032
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UAIPD 10-0024
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UAIPD 12-0006
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UAIPD 13-0018
The document describes an invention for iron oxide nanoparticles with surface capping molecules that can be used as matrix compounds for MALDI mass spectrometry. Current problems with selecting matrix compounds are addressed by using these nanoparticles which allow for more control over matrix construction and target specific analytes. The preliminary data shows these nanoparticle matrices are versatile, selective, and allow for facile energy transfer and abundant fragmentation of sample ions.
UAIPD 08-0017
The document describes a novel method for intercalating and exfoliating graphite into graphene using ionic liquids. This single-step method avoids the harsh chemical treatments and oxidation steps used in previous methods. The ionic liquids intercalate between the graphite layers, allowing for direct exfoliation into a graphene-ionic liquid composite solution. This creates a precursor for producing graphene films and composites. The method offers advantages over previous techniques by being simpler, less hazardous, and avoiding residual components that degrade graphene's properties.
UAIPD 13-0004
Bismuth telluride is a layered material with promising thermoelectric properties, but current production methods are inefficient and costly. Dr. Hung-Ta Wang has developed a novel exfoliation process using ionic liquids to efficiently produce 2D bismuth telluride sheets at an industrial scale. This low-cost method allows for easy deposition of the exfoliated bismuth telluride onto substrates, addressing key challenges in widespread adoption of thermoelectric generators. Dr. Wang is an associate professor with over 50 publications and 1 patent application focused on materials for energy applications.
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The document summarizes the capabilities of the Fiber Development Laboratory at the University of Kentucky Center for Applied Energy Research. The laboratory contains the largest solution spinning line found in an academic setting in North America. It has decades of experience developing experimental polymers and fibers from lab-scale to pilot-scale. The laboratory's research areas include multifunctional fibers, electrically conductive textiles, polymeric precursor fibers, bio-derived polymers, thermally conductive composites, and lightweight chemical/biological protection materials.
Poster for Walt Lab
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Conducting polymers : Something New
Conducting polymers : Something NewMinal Saini , student of Chaudhary bansilal University , Bhiwani, Haryana
Conducting polymers can conduct electricity when carbon atoms in the polymer backbone are linked by double bonds. Common conducting polymers include polyacetylene, polyaniline, and polythiophene. They are prepared through various synthesis methods and their conductivity is affected by factors like mobility, doping, and temperature. Potential applications of conducting polymers include corrosion protection, solar cells, medical uses, and more. While doped polymers are conductors, conjugate polymers are semiconductors. Conducting polymers offer opportunities to replace metals in various devices due to properties like mechanical flexibility and low cost.Role of ionic liquid [BMIMPF6] in modifying the
This document discusses a study on the effect of the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6) on the crystallization kinetics of the polymer electrolyte PEO-LiClO4. Three techniques were used: isothermal crystallization using DSC, non-isothermal crystallization using DSC, and monitoring spherulite growth over time using polarized optical microscopy. All techniques showed that BMIMPF6 suppresses the crystallization rate due to its plasticization effect. Isothermal data fit the Avrami equation well. Non-isothermal crystallization was best explained by Mo's method. Polarized optical microscopy
Analysis of Conducting Polymer:Polypyrrole::Part 2
1. Polypyrrole films doped with different ions exhibit varying levels of crystallinity, thermal stability, and electrical conductivity based on the dopant used. Films doped with camphor sulfonic acid and polyphosphate ions show higher crystallinity levels and better thermal stability compared to films doped with hydrochloric acid or perchlorate ions.
2. The conductivity of polypyrrole increases with decreasing diameter of polypyrrole tubules. Raman spectroscopy indicates that ordering of polymer chains improves at smaller tubule diameters, leading to higher conductivity.
3. Thermogravimetric analysis shows polypyrrole undergoes weight loss in three distinct stages involving loss of dopant and degradation of the
Bioabsorbable Implants in Orthopaedics - Dr Chintan N Patel
This document discusses bioabsorbable implants used in orthopaedics. It defines bioabsorbable implants as those that gradually degrade through biological processes and are absorbed and excreted by the body. Common materials used include polyglycolic acid and polylactic acid. Bioabsorbable implants offer advantages over metallic implants by eliminating the need for removal surgery and avoiding problems like stress shielding. While offering promise, bioabsorbable implants also have drawbacks like inadequate strength and stiffness. Future areas of development include implants that degrade at medium time periods and ability to deliver drugs locally.
PEDOT Presentation
This document discusses testing the chemical resistance of PEDOT (poly(3,4-ethylenedioxythiophene)) coated on textile substrates via vapor phase polymerization. Samples were submerged in various organic and inorganic solvents for up to 72 hours. 10% sodium hydroxide most significantly increased electrical resistance over time, removing the PEDOT layer. Tetrahydrofuran removed the PEDOT layer within 24 hours. Weight loss correlated with decreasing conductivity. Scanning electron microscopy images showed PEDOT removal from sodium hydroxide and THF treated samples.
Conductive Polymer for textile physics .pptx
In this presentation you will find a presentation about conductive polymer related to Textile Physics course for Textile Engineering.
Polymers ,Raising the efficiency of fuel cell by adding polymeric membranes ,...
Polymers ,Raising the efficiency of fuel cell by adding polymeric membranes ,...Qatar University- Young Scientists Center (Al-Bairaq)
Done by Group : Scientists
School Name : Alshahaniya Independent Secondry School for Boys.
Polymers Module : Through this module, students examine the different properties of the variety of polymers. Then they design and test a humidity sensor made of a polymer film. Finally, they are asked to design their own products.
the product Idea is : Raising the efficiency of fuel cell by using some modified polymeric membranes to increase its durability.ISEF-Final
The document discusses developing a biodegradable and flame-retardant polymer blend. It finds that a blend of 50% PLA, 50% PBAT, and 8% cellulose soaked in RDP achieves the highest flame retardancy rating while maintaining good mechanical properties. Testing shows the blend hardens significantly after burning, unlike previous blends using starch, and has a high phosphorus content at the surface, indicating formation of a thermal barrier. The research aims to minimize additive content while maximizing flame retardancy and mechanical strength for environmentally-friendly applications.
Click chemistry appliations in polymer science
1. Click chemistry describes high-yielding chemical reactions that can join small units together under mild conditions to form complex molecules. Reactions classified as "click" must be modular, wide in scope, generate no byproducts, and meet other criteria.
2. The copper-catalyzed azide-alkyne cycloaddition, or CuAAC, is a prototypical click reaction that is highly favorable thermodynamically and kinetically. It has found numerous applications in material science, including in adhesives, propellant binders, polymer modification, and surface functionalization of nanoparticles.
3. Other click reactions like thiol-ene have been used to synthesize hydrogels and dendrimers/
conductingpolymers-2justin-190617165209 (1).pdf
This document discusses conducting polymers. It describes two types of conducting polymers: intrinsically conducting polymers which have conjugation in their backbone providing conductivity, and extrinsically conducting polymers which require external ingredients like carbon black to become conductive. Doping can increase the conductivity of polymers by removing or inserting electrons. Conducting polymers have applications in anti-static coatings, corrosion inhibition, capacitors, smart windows, transistors, LEDs and solar cells. While manufacturing costs are high, conducting polymers could enable flexible transparent displays and be used in biomedical applications if issues like toxicity and processing are addressed.
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JAMES WEBB STUDY THE MASSIVE BLACK HOLE SEEDS
The pathway(s) to seeding the massive black holes (MBHs) that exist at the heart of galaxies in the present and distant Universe remains an unsolved problem. Here we categorise, describe and quantitatively discuss the formation pathways of both light and heavy seeds. We emphasise that the most recent computational models suggest that rather than a bimodal-like mass spectrum between light and heavy seeds with light at one end and heavy at the other that instead a continuum exists. Light seeds being more ubiquitous and the heavier seeds becoming less and less abundant due the rarer environmental conditions required for their formation. We therefore examine the different mechanisms that give rise to different seed mass spectrums. We show how and why the mechanisms that produce the heaviest seeds are also among the rarest events in the Universe and are hence extremely unlikely to be the seeds for the vast majority of the MBH population. We quantify, within the limits of the current large uncertainties in the seeding processes, the expected number densities of the seed mass spectrum. We argue that light seeds must be at least 103 to 105 times more numerous than heavy seeds to explain the MBH population as a whole. Based on our current understanding of the seed population this makes heavy seeds (Mseed > 103 M⊙) a significantly more likely pathway given that heavy seeds have an abundance pattern than is close to and likely in excess of 10−4 compared to light seeds. Finally, we examine the current state-of-the-art in numerical calculations and recent observations and plot a path forward for near-future advances in both domains.
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Microbial interaction
Microorganisms interacts with each other and can be physically associated with another organisms in a variety of ways.
One organism can be located on the surface of another organism as an ectobiont or located within another organism as endobiont.
Microbial interaction may be positive such as mutualism, proto-cooperation, commensalism or may be negative such as parasitism, predation or competition
Types of microbial interaction
Positive interaction: mutualism, proto-cooperation, commensalism
Negative interaction: Ammensalism (antagonism), parasitism, predation, competition
I. Mutualism:
It is defined as the relationship in which each organism in interaction gets benefits from association. It is an obligatory relationship in which mutualist and host are metabolically dependent on each other.
Mutualistic relationship is very specific where one member of association cannot be replaced by another species.
Mutualism require close physical contact between interacting organisms.
Relationship of mutualism allows organisms to exist in habitat that could not occupied by either species alone.
Mutualistic relationship between organisms allows them to act as a single organism.
Examples of mutualism:
i. Lichens:
Lichens are excellent example of mutualism.
They are the association of specific fungi and certain genus of algae. In lichen, fungal partner is called mycobiont and algal partner is called
II. Syntrophism:
It is an association in which the growth of one organism either depends on or improved by the substrate provided by another organism.
In syntrophism both organism in association gets benefits.
Compound A
Utilized by population 1
Compound B
Utilized by population 2
Compound C
utilized by both Population 1+2
Products
In this theoretical example of syntrophism, population 1 is able to utilize and metabolize compound A, forming compound B but cannot metabolize beyond compound B without co-operation of population 2. Population 2is unable to utilize compound A but it can metabolize compound B forming compound C. Then both population 1 and 2 are able to carry out metabolic reaction which leads to formation of end product that neither population could produce alone.
Examples of syntrophism:
i. Methanogenic ecosystem in sludge digester
Methane produced by methanogenic bacteria depends upon interspecies hydrogen transfer by other fermentative bacteria.
Anaerobic fermentative bacteria generate CO2 and H2 utilizing carbohydrates which is then utilized by methanogenic bacteria (Methanobacter) to produce methane.
ii. Lactobacillus arobinosus and Enterococcus faecalis:
In the minimal media, Lactobacillus arobinosus and Enterococcus faecalis are able to grow together but not alone.
The synergistic relationship between E. faecalis and L. arobinosus occurs in which E. faecalis require folic acid
Pests of Storage_Identification_Dr.UPR.pdf
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Graininfestation
Directdamage
Indirectly
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•Biological
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•Chemical
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快速办理(UAM毕业证书)马德里自治大学毕业证学位证一模一样
学校原件一模一样【微信：741003700 】《(UAM毕业证书)马德里自治大学毕业证学位证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
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四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
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◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Candidate young stellar objects in the S-cluster: Kinematic analysis of a sub...
Context. The observation of several L-band emission sources in the S cluster has led to a rich discussion of their nature. However, a definitive answer to the classification of the dusty objects requires an explanation for the detection of compact Doppler-shifted Brγ emission. The ionized hydrogen in combination with the observation of mid-infrared L-band continuum emission suggests that most of these sources are embedded in a dusty envelope. These embedded sources are part of the S-cluster, and their relationship to the S-stars is still under debate. To date, the question of the origin of these two populations has been vague, although all explanations favor migration processes for the individual cluster members. Aims. This work revisits the S-cluster and its dusty members orbiting the supermassive black hole SgrA* on bound Keplerian orbits from a kinematic perspective. The aim is to explore the Keplerian parameters for patterns that might imply a nonrandom distribution of the sample. Additionally, various analytical aspects are considered to address the nature of the dusty sources. Methods. Based on the photometric analysis, we estimated the individual H−K and K−L colors for the source sample and compared the results to known cluster members. The classification revealed a noticeable contrast between the S-stars and the dusty sources. To fit the flux-density distribution, we utilized the radiative transfer code HYPERION and implemented a young stellar object Class I model. We obtained the position angle from the Keplerian fit results; additionally, we analyzed the distribution of the inclinations and the longitudes of the ascending node. Results. The colors of the dusty sources suggest a stellar nature consistent with the spectral energy distribution in the near and midinfrared domains. Furthermore, the evaporation timescales of dusty and gaseous clumps in the vicinity of SgrA* are much shorter ( 2yr) than the epochs covered by the observations (≈15yr). In addition to the strong evidence for the stellar classification of the D-sources, we also find a clear disk-like pattern following the arrangements of S-stars proposed in the literature. Furthermore, we find a global intrinsic inclination for all dusty sources of 60 ± 20◦, implying a common formation process. Conclusions. The pattern of the dusty sources manifested in the distribution of the position angles, inclinations, and longitudes of the ascending node strongly suggests two different scenarios: the main-sequence stars and the dusty stellar S-cluster sources share a common formation history or migrated with a similar formation channel in the vicinity of SgrA*. Alternatively, the gravitational influence of SgrA* in combination with a massive perturber, such as a putative intermediate mass black hole in the IRS 13 cluster, forces the dusty objects and S-stars to follow a particular orbital arrangement. Key words. stars: black holes– stars: formation– Galaxy: center– galaxies: star formation
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Isolation of pure culture, its various method.
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Targeting Hsp90 and its pathogen Orthologs with Tethered Inhibitors as a Diagnostic and Therapeutic Strategy for cancer and infectious diseases with Dr. Timothy Haystead.The binding of cosmological structures by massless topological defects
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
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We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
The cost of acquiring information by natural selection
This is a short talk that I gave at the Banff International Research Station workshop on Modeling and Theory in Population Biology. The idea is to try to understand how the burden of natural selection relates to the amount of information that selection puts into the genome.
It's based on the first part of this research paper:
The cost of information acquisition by natural selection
Ryan Seamus McGee, Olivia Kosterlitz, Artem Kaznatcheev, Benjamin Kerr, Carl T. Bergstrom
bioRxiv 2022.07.02.498577; doi: https://doi.org/10.1101/2022.07.02.498577
CLASS 12th CHEMISTRY SOLID STATE ppt (Animated)
Description:
Dive into the fascinating realm of solid-state physics with our meticulously crafted online PowerPoint presentation. This immersive educational resource offers a comprehensive exploration of the fundamental concepts, theories, and applications within the realm of solid-state physics.
From crystalline structures to semiconductor devices, this presentation delves into the intricate principles governing the behavior of solids, providing clear explanations and illustrative examples to enhance understanding. Whether you're a student delving into the subject for the first time or a seasoned researcher seeking to deepen your knowledge, our presentation offers valuable insights and in-depth analyses to cater to various levels of expertise.
Key topics covered include:
Crystal Structures: Unravel the mysteries of crystalline arrangements and their significance in determining material properties.
Band Theory: Explore the electronic band structure of solids and understand how it influences their conductive properties.
Semiconductor Physics: Delve into the behavior of semiconductors, including doping, carrier transport, and device applications.
Magnetic Properties: Investigate the magnetic behavior of solids, including ferromagnetism, antiferromagnetism, and ferrimagnetism.
Optical Properties: Examine the interaction of light with solids, including absorption, reflection, and transmission phenomena.
With visually engaging slides, informative content, and interactive elements, our online PowerPoint presentation serves as a valuable resource for students, educators, and enthusiasts alike, facilitating a deeper understanding of the captivating world of solid-state physics. Explore the intricacies of solid-state materials and unlock the secrets behind their remarkable properties with our comprehensive presentation.
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Ozturkcan, S., Berndt, A., & Angelakis, A. (2024). Mending clothing to support sustainable fashion. Presented at the 31st Annual Conference by the Consortium for International Marketing Research (CIMaR), 10-13 Jun 2024, University of Gävle, Sweden.
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UAIPD 08-0019
- 1. UAIPD 08-0019 Dr. Dan Daly, Dr. Rachel Frazier, Dr. Scott Spear Process for Preparing Conductive Cellulose and Cotton Using Ionic Liquids
- 2. Current Problems • Intrinsic conducting polymers (ICPs) have immense variety in physical and electronic/conductive properties • Polypyrrole (PPy) consist of five membered heterocyclic rings – Low resistance, redox properties, environmental stability • Conductive polymers into nanostructure – Oxidation process is unsafe and uses harsh chemicals – Significant degradation in mechanical properties
- 3. • Novel process fabricating nanostructure conductive polypyrrolecellulose fiber composites using Ionic Liquid (IL) solvent • IL acts as a solvent for the polymerization of pyyrole and can dissolve as cellulose – Combination of both properties lead to effectively impregnate cellulose fibers as well as effectively polymerize pyrrole • Resulting in electrically conductive cellulose fiber composites Technology
- 4. • Enhancement – Mechanical and conductive properties • Fe(III) absorption peaks at 65mg/g around 10 minutes – Indications of significant improvement compared to other processing routes • Increased amounts of nanostructure polypyrrole particles • Resistance of conductive cellulose fiber composite reduced significantly with increased pyrrole concentration • Degradation of strength and stiffness Advantages
- 5. • Dr. Dan Daly – Director – 1 Patent – 15 Patent Applications • Department – Alabama Innovation and Mentoring of Entrepreneurs Inventors • Dr. Rachel Frazier – Research Engineer – 1 Patent – 6 Patent Applications • Department – Alabama Innovation and Mentoring of Entrepreneurs • Dr. Scott Spear – Research Engineer – 1 Patent – 7 Patent Applications • Department – Alabama Innovation and Mentoring of Entrepreneurs dandaly@ua.edu rmfrazier@bama.ua.edu sspear@bama.ua.edu
- 6. Office for Technology Transfer 720 2nd Ct E Tuscaloosa, AL 35401 UAIPD 08-0019 OTT@UA.edu www.OTT.UA.edu
Editor's Notes
- Should read like Wikipedia entry. Try to focus on the high points.
- Closing slide. Make sure to add in UAIPD# then change font back to black.