Question

47. Which of the following is a copolymer?
a) polythene
b) polyurethane
d) plexiglass
c) Teflon​

Answer 1

Explanation:

plexiglass is a copolymer

Answer 2

Answer:

Which of the following is a copolymer?

d) plexiglass

Explanation:

• A copolymer is a polymer that is made up of two or more monomer species. Many commercially important polymers are copolymers. Examples include polyethylene-vinyl acetate (PEVA), nitrile rubber, and acrylonitrile butadiene styrene (ABS).
• A copolymer is a polymer formed when two (or more) different types of monomer are linked in the same polymer chain, as opposed to a homopolymer where only one monomer is used. Common applications of block copolymers are in adhesives, surfactants, membranes, foams, and cosmetics.
• There are four basic copolymer structures: random, alternating, block and graft. Random copolymers have relatively random distributions of the two monomer units along the polymer chain.
• Copolymer grades have better oxidation resistance and exhibit better resistance to creep and creep rupture at longer time scales. Surprisingly, glass fiber filled copolymer grades have better mechanical properties than the corresponding homopolymer.

Hence, option C is correct answer which is plexiglass.

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