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Write the classification of polymers based on structure. Give examples. |
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Answer» Solution :Based on structure, polymers are classified as LINEAR polymers, branched polymers and network or cross linked polymers. (1) Linear polymers : These polymers made up of long continuous chain without any branches . The repeating units are joined together to form a long chain . e.g. polythene, PVC.  (2) Branched polymers : These polymers consists of long and straight chain with smaller chains as branches . They have low density . Polypropylene having methyl groups as branches.  (3) Network or corss linked polymers : These polymers consist linking of chain polymers by strong COVALENT bonds leads to network like structure . e.g. melamine,bakelite, VULCANIZATION of RUBBER. 
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