Polymers are substances made of large molecules formed by linking many small repeating molecular units. There are natural and synthetic polymers, as well as linear and commercial polymers like polyethylene, polypropylene, polyvinyl chloride, polyvinyl acetate, polystyrene, and polyacrylonitrile. Polyvinyl chloride is produced through heating vinyl chloride in the presence of a catalyst and is colorless, odorless, non-flammable and resistant to light, acids and bases. It has a wide range of uses like pipes, sheets, and parts for refrigerators, cycles, tires, and more. Polymers have many applications in daily life, sports, medicine, aerospace, electronics, and defense

1. INTRODUCTION TO POLYMERS

3. POLYMER
 A polymer is define as the substance having very
high molecular weight and is made by joining of
large number of simple molecules .
 These are the molecules having certain structural
unit repeating large number of times .

4. TYPES OF POLYMERS
 Natural Polymers
 Synthetic Polymers
 Linear Polymers
 Commercial Polymers

5. COMMERCIAL POLYMERS :
 Poly Ethylene
 Poly Propylene
 Poly Vinyl Chloride
 Poly Vinyl Acetate
 Poly Styrene
 Poly Acrylonitrile
 TEFLON

6. POLY VINYL CHLORIDE{PVC} :
 Polyvinyl Chloride is obtained by heating a water-emulsion of
vinyl chloride in presence of a small amount of benzyl peroxide.
 PVC is generally prepared by treating acetylene at 1 to 1.5 atm
with hydrogen chloride at 60-80 degree.

7. PROPERTIES :
 PVC is colourless odourless,non-
inflammable and resistant light,inorganic
acids and alkalis.
 Pure resin possesses a high softening
point and a greater stifness and rigidity
compared to polyethylene, but is brittle.
 It is the mostly widely used in synthetic
plastic.

8. USES OF PVC :
 PVC is mainly used in PVC pipes.
 It is used in making sheets, light-fittings,
refrigerator parts.
 It is also used in cycles, tyres, motor cycle
parts, toys, aero-planes parts.

9. APPLICATIONS OF POLYMERS
 It is difficult to find an
aspect of our lives that is
not affected by polymers.
 Polymers in daily life.
 Polymers in sports.
 Polymers in medicine.
 Polymers in aero-space.
 Polymers in electroincs.
 Polymers in defence.

10. Top Polymer Companies:
 Dow, Dupont, Basf, Bayer, Mitsubishi.
 Mercedes-benz, Audi, Maruti.
 SABIC, Shell, Braskem, Ticona.
 PPG Industries and Eastman.

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