Which polymer has 'chiral' monomer(s) ?
Show Hint
- Nylon 6,6
- Buna-N
- PHBV
- Neoprene
The Correct Option is C
Solution and Explanation
Buna-N: 1,3-butadiene and acrylonitrile \(\mathrm{CH_2=CH-CN}\): both achiral.
PHBV (poly-3-hydroxybutyrate-co-3-hydroxyvalerate): monomers 3-hydroxybutanoic acid \(\mathrm{CH_3CH(OH)CH_2COOH}\) and 3-hydroxypentanoic acid \(\mathrm{CH_3CH_2CH(OH)CH_2COOH}\): C3 in each carries H, OH, \(\mathrm{CH_2COOH}\) and an alkyl group, so both monomers are chiral.
Neoprene: chloroprene \(\mathrm{CH_2=CCl-CH=CH_2}\): achiral.
Answer: (3) PHBV
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