A. In polymerisation of ethene, the source of free radical is needed to initiate the chain reaction. Such free radicals are usually produced by the decomposition of peroxides.
Tert- butyl peroxide is used as free radical generating initiator or simply as a catalyst during the polymerisation of ethene
B. The above polymer is known as glyptal and it is made from 2 monomers, ethylene glycol and pthalic acid.
C. There are four types of polymers based on the molecular forces and they are as follows: elastomers, fibers, thermoplastic polymer, and thermosetting polymer.
Bhuna-S is an elastomer which has a weak binding force which enable them to stretch.
PVC is thermoplastic polymer which has force intemideate of eastober and fibers
Nylon-6,6 is an example of fibers which possess high tensile strength because of strong intermolecular force
Bhuna-S < PVC < Nylon-6,6
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