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  4. Lactic acid and glycollic acid are the monomers used for preparation of polymer

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Q. Lactic acid and glycollic acid are the monomers used for preparation of polymer

MHT CETMHT CET 2018Polymers

Solution:

Dextron is a copolymer of glycollic acid and lactic acid consisting of ester linkages that makes it biodegradable

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• Nylon-2-nylon-6 is copolymer of glycine

$(H_{2}N—CH_{2} — COOH)$ and amino caproic acid

$(H_{2}N (CH_{2})_{5}COOH)$ and is biodegradable in nature

$nH_{2}N — \underset{\text{Glycine }}{CH_{2}}— COOH +\underset{\text{mino caproic acid}}{nH_{2}N (CH_{2})_{5}COOH}$

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• PHBV (poly $\beta$-hydroxy butyrate-co-$\beta$-hydroxy valerate) is obtained by copolymerisation of 3-hydroxybutanoic acid and 3 -hydroxy pentanoic acid

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• Buna-N is obtained by copolymerisation of 1 ,3 butadiene and acrylonitrile in the presence of a peroxide catalyst

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