Polymers

Polymers

1. Origin?

   • Is coined from 2 greek words
     • Poly, means many
     • Mer means unit

2. What is it?

   • Very large molecules having high molecular mass
     • 10^(3)-10^(7)
   • Macromolecules
     • Monomers
       • Polymerisation

3. Use in?

   • Manufacture of plastic buckets
   • Cups and Saucers
   • Children toys
   • Packaging bags
   • Syntetic clothing materials

4. Classification of Polymers

   • Classification Based on Source
     • Natural polymers
       • Found in plants and animals
     • Semi-synthetic polymers
       • Cellulose deribates
     • Synthetic polymers
       • Plastic, synthetic fibres
   • Classification Based on Structure of Polymers
     • Branched chain polymers
     • Cross linked
     • Linear Polymers
   • Classification based on mode of Plolymerization
     • Addition polymers
       • Formed by the repeated addition of monomer molecules possessing double.
     • Condensation polymers
       • Formed by the repeated condensation reaction between two different bi-functional
   • Classification based on molecular forces
     • Elastomers
       • These are rubber
     • Fibres
       • Are the thread forming solids
     • Thermoplastic polymers
       • Are linear branched long chain molecules
     • Thermosetting polymers
       • Are cross linked
   • Classification based on Growth polymerisation
     • Chain growth polymerisation and condensation

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