Which of the following are polyester polymers ?
Of the following which one is classified as polyester polymer ?
Which of the following has cross-linked polymer chains ?
(a) bakelite (b) polyester (c) PVC (d) nylon
Which of the following is not a thermoplastic polymer ?
(a) polyester (b) melamine (c) nylon (d) polyvinyl chloride
is a biodegradable polymer? Give an example of a biodegradable