a) Write partial structure of:
i) Neoprene
ii) Terylene (Dacron)
iii) Nylon - 6
b) Explain the preparation of Buna-N with equation

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Solution

$B u n a - N$ is a copolymer of acrylonitrile and
$1, 3$ -butadiene. It is prepared by addition polymerisation.

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Write the name and structures of the monomers of the following polymers.

Buna - S

Buna - N

Dacron

Neoprene

66

Which of the following polymers, need atleast one diene monomer for their preparation?

(a) Dacron

(b) Buna-S

(d) Novolac

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