Question

What is meant by copolymerisation ? Give two examples of copolymers and the reactions for their preparation.

Answer 1

The polymerization of monomers into copolymers is called copolymerization.Some examples include acrylonitrile butadiene styrene (ABS), styrene/butadiene co-polymer (SBR), nitrile rubber, styrene-acrylonitrile, styrene-isoprene-styrene (SIS) and ethylene-vinyl acetate, all formed by chain-growth polymerization.

Answer 2

Answer:

✔Copolymerisation is a polymerisation reaction in which a mixture of more than one monomeric species is allowed to polymerise and form a copolymer.

✔Copolymer can be made via both chain growth polymerisation and step growth polymerisation.

✔For example - A mixture of 1,3-butadiene and styrene can form a copolymer.

✔Copolymers have different properties from homopolymers.

✔Butadiene-styrene copolymer is quite tough and is a good substitute for natural rubber.