Question -
Answer -
Polymers are classified on the basis of structure asfollows:
1. Linearpolymers:
These polymers are formed of long straight chains. Theycan be depicted as:

For e.g., high density polythene (HDP), polyvinylchloride, etc.
2. Branched chainpolymers:
These polymers are basically linear chain polymers withsome branches. These polymers are represented as:
For e.g., low density polythene (LDP), amylopectin, etc.
3. Cross-linked orNetwork polymers:
These polymers have many cross-linking bonds that giverise to a network-like structure. These polymers contain bi-functional andtri-functional monomers and strong covalent bonds between various linearpolymer chains. Examples of such polymers include bakelite and melmac.
