"Addition polymerisation is used for the production of important polymers. a. Give one example for the addition polymer. b. What is the mechanism in addition polymerisation?

Explanation

a. Polypropylene is an example for addition polymer.
b. Addition of polymers are formed by the repeated addition of monomer units. Thẻ monómers involved are unsaturated compounds and are-usually the derivatives' of, ethene. eg: Propylene undergoes' addition polymerisátion to form .polypropylene. In addition polymerisation, the monomer units successively add to the growing chain. by a chain reaction and is called chain growth polymerisation. This reaction takes place in the presence of initiators liké heat, 'light or redox reaction to produce an activè species.
i. Initiator 'rarr A^*' (free radicals)
ii. equation
iii. equation