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Polymers

S
Shivani Jadhav

The document discusses the classification and properties of different types of polymers. Polymers are classified based on their mode of polymerization into addition polymers and condensation polymers. They are also classified based on molecular forces into elastomers, fibers, thermoplastic polymers, thermosetting polymers, and natural rubber. Examples of various polymers are provided along with their common uses such as nylon 6 for tire cords and fabrics and nylon 6,6 for textiles. Teflon is noted for its chemical inertness and use in non-stick coatings.

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STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 CLASSIFICATION
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Addition polymers CLASSIFICATION BASED ON MODE OFPOLYMERISATION
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Condensation polymers CLASSIFICATION BASED ON MODE OFPOLYMERISATION
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Elastomers CLASSIFICATION BASED ON MOLECULAR FORCES In these elastomeric polymers, the polymer chains are held together by theweakest intermolecular forces. Eg.-buna-S, buna-N, neoprene, etc.
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Fibres CLASSIFICATION BASED ON MOLECULAR FORCES Fibres are the thread forming solids which possess high tensilestrength and high modulus. Eg.- polyamides (nylon 6, 6), polyesters (terylene), etc.
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Thermoplastic polymers CLASSIFICATION BASED ON MOLECULAR FORCES These are the linear or slightly branched long chain moleculescapable of repeatedly softening on heating and hardening on cooling. Eg,-polythene, polystyrene, polyvinyls, etc.
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Thermosetting polymers CLASSIFICATION BASED ON MOLECULAR FORCES These polymers are cross linked or heavily branched molecules,which on heating undergo extensive cross linking in moulds andagain become infusible. Eg.-bakelite, urea-formaldelyde resins, etc
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Rubber is a natural polymer and possesses elastic properties. It ismanufactured from rubber latex. Natural rubber may be considered as a linear polymer ofisoprene (2-methyl-1, 3- butadiene) and is also called as cis - 1, 4 - polyisoprene. NATURAL RUBBER
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 NATURAL RUBBER Natural rubber becomes soft at high temperature (>335 K) and brittle at low temperatures (<283 K) and shows high water absorption capacity.
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Nylon 6 is used for the manufacture of tyre cords, fabrics andropes. NYLON 6
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Nylon 6, 6 is used in making sheets, bristles for brushes andin textile industry. NYLON 6,6
STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Teflon is chemicallyinert and resistant to attack by corrosive reagents. It is used inmaking oil seals and gaskets and also used for non stick surface coated utensils. POLYTETRAFLUOROETHENE (TEFLON)

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Polymers

  • 1. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 CLASSIFICATION
  • 2. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Addition polymers CLASSIFICATION BASED ON MODE OFPOLYMERISATION
  • 3. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Condensation polymers CLASSIFICATION BASED ON MODE OFPOLYMERISATION
  • 4. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Elastomers CLASSIFICATION BASED ON MOLECULAR FORCES In these elastomeric polymers, the polymer chains are held together by theweakest intermolecular forces. Eg.-buna-S, buna-N, neoprene, etc.
  • 5. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Fibres CLASSIFICATION BASED ON MOLECULAR FORCES Fibres are the thread forming solids which possess high tensilestrength and high modulus. Eg.- polyamides (nylon 6, 6), polyesters (terylene), etc.
  • 6. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Thermoplastic polymers CLASSIFICATION BASED ON MOLECULAR FORCES These are the linear or slightly branched long chain moleculescapable of repeatedly softening on heating and hardening on cooling. Eg,-polythene, polystyrene, polyvinyls, etc.
  • 7. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Thermosetting polymers CLASSIFICATION BASED ON MOLECULAR FORCES These polymers are cross linked or heavily branched molecules,which on heating undergo extensive cross linking in moulds andagain become infusible. Eg.-bakelite, urea-formaldelyde resins, etc
  • 8. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Rubber is a natural polymer and possesses elastic properties. It ismanufactured from rubber latex. Natural rubber may be considered as a linear polymer ofisoprene (2-methyl-1, 3- butadiene) and is also called as cis - 1, 4 - polyisoprene. NATURAL RUBBER
  • 9. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 NATURAL RUBBER Natural rubber becomes soft at high temperature (>335 K) and brittle at low temperatures (<283 K) and shows high water absorption capacity.
  • 10. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Nylon 6 is used for the manufacture of tyre cords, fabrics andropes. NYLON 6
  • 11. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Nylon 6, 6 is used in making sheets, bristles for brushes andin textile industry. NYLON 6,6
  • 12. STUDYDUNIYA The Educational Social Network C H E M I S T R Y - O R G A N I C - P O L Y M E R S IIT JEE @studyduniya +91 7744994714 Teflon is chemicallyinert and resistant to attack by corrosive reagents. It is used inmaking oil seals and gaskets and also used for non stick surface coated utensils. POLYTETRAFLUOROETHENE (TEFLON)