How are polymers are classified on the basis of their structure?
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Solution

On the basis of structure polymers are classified as-

(i) Linear polymer: These polymers consist of long and straight chain. High density polyethylene (HDPE) and polyvinyl chloride (PVC) are some examples of linear polymers.
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(ii) Branched chain polymers: These polymers contain linear chain having some branches. Low density polyethylene (LDPE) and glycogen are examples of branched chain polymers.
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(iii) Cross linked or Network polymers: These polymers have some cross-links between various linear chains. Bakelite and melamine are examples of cross linked polymers.
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