The polymer that is not prepared by condensation process is:
1. Melamine
2. Glyptal
3. Dacron
4. Neoprene
Buna-S is a synthetic copolymer of:
1. Styrene and buta-1,3-diene.
2. Styrene and ethylene.
3. 1,3-Butadiene and ethylene.
4. None of the above.
Buna rubber is a polymer of:
(1) 1,3-btadiene
(2) vinyl acetate
(3) styrene
(4) none of these
Natural rubber is a polymer of :-
1. Isoprene
2. Styrene
3. Ethylene
4. Butadiene
Polymer that is used to make non stick cookware is:
1. PVC
2. Polysterene
3. Polyethylene
4. PTFE
A copolymer of isobutylene and isoprene is called:
(a) butyl rubber (b) buna-S
(c) buna-N (d) thiokol
Terylene is a:
1. Polyamide
2. Polyester
3. Polyether
4. Long chain hydrocarbon
Thermosetting plastics are:
(a) cross-linked polymers
(b) don’t melt or soften on heating
(c) cross-linking is usually developed at the time of moulding where they harden reversibly
(d) all of the above
Which are true for terpolymer?
(a) Contains three monomers
(b) ABS plastic
(c) A polymer of acrylonitrile, butadiene and styrene
(d) All of the above
Nylon-6, 10 is a polymer of.
(a) hexamethylene and adipic acid
(b) hexamethylene and sebacic acid
(c) caprolactam
(d) none of the above