Name the type of reaction involved in the formation of the following polymers from their respective monomers

(i) PVC.

(ii) Nylon6.

(iii) PHBV.

(i) PVC is formed from the monomer Vinyl choride. The type of the reaction involved in the formation of PVC from vinyl chloride is the addition polymerization.

Note: Addition polymers are formed by the repeated addition of a large number of same or different monomers possessing the double and triple bonds and the process by wjhich addition polymers are formed is called addition polymerization.

(ii) Nylon 6 is formed by the condensation polymerization.

Note: Condensation polymers are formed by the repeated condensation reaction between two bifunctional or trifunctional monomer units usually with the elimination of small molecules like water, alcohol, ammonia, carbon dioxide, hydrogen chloride etc. and the process by which condensation polymers are formed is called condensation polymerization.

(iii) PHBV is formed by the condensation polymerization.