Polymers are large molecules having high molecular mass (103 – 107 u). They are also called macromolecules.
Polymerisation is the process of formation of polymers from respective monomers.
Classification of polymers:
(I) On the basis of source
(i) Natural polymers: Found in plants and animals, e.g., proteins, cellulose, starch.
(ii) Semi-synthetic polymers: Cellulose acetate (rayon), cellulose nitrate
(iii) Synthetic polymers: Synthetic fibre → nylon 6, 6 Synthetic rubber → Buna-S
(II) On the basis of structure
(i) Linear polymers: High-density polythene, Polyvinyl chloride.
(ii) Branched-chain polymers: Low-density polythene.
(iii) Cross-linked or network polymers…
To view the complete topic, please