Mention two uses of Nylon-6, 6.

Which is better material for making PVC pipes a thermosetting plastic or a thermoplastic?

Name one synthetic polymer containing - CN group. Give its formula.

Define copolymerisation? Give one example. 

Give two examples of polymers that belong to the class of formaldehyde resins.

State how rayon is different from silk?

What structural changes are produced during vulcanization of rubber?

Classify the following polymers as chain growth and step growth polymers:
(i) Buna-S
(ii) Nylon-6,6
(iii) Terylene
(iv) PVC

What are polyamides?