Question

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

• A. Nylon-2-nylon-6
• B. Dextron
• C. PHBV
• D. Buna-N

Answer 1

Answer: (B)

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



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

$(H_{2}N—C{H}_2—COOH)$ and amino caproic acid

$(H_{2}N(C{H}_2{)}_{5}COOH)$ and is biodegradable in nature

$n{H}_{2}N—\underset{\text{Glycine }}{C{H}_2}—COOH+\underset{\text{mino caproic acid}}{n{H}_{2}N(C{H}_2{)}_{5}COOH}$



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



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