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

Buna - S

Buna - N

Dacron

Neoprene

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Solution

Buna - S (a) 1, 3 - buta diene; $C H_{2} = C H - C H = C H_{2}$

(b) Styrene; $C_{6} H_{5} C H = C H_{2}$

Buna - N (a) 1, 3 - butadiene; $C H_{2} = C H - C H = C H_{2}$

(b) Acrylonitrile; $C H_{2} = C H - C N$

Dacron (a) Ethylene glycol; $H O H_{2} C - C H_{2} O H$

(b) Terephthalic acid; $H O O C - C_{6} H_{4} - C O O H$

Neoprene Chloroprene or 2-chloro buta-1, 3-diene;

$C H_{2} = C H | C l - C H = C H_{2}$

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