The biodegradable polymer is/are

Nylon 6,6

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Nylon 2–nylon 6

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Nylon-6

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P H B V

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Solution

The correct option is D $P H B V$
Aliphatic polyesters are one of the important classes of biodegradable polymers. Some important examples are given below:

1. 2. $Poly - β - hydroxybutyrate co - β - v a l e r a t e$ (PHBV) is obtained by the copolymerization of 3-hydroxybutyric acid and 3-hydroxypentanoic acid. PHBV is used in specially packaging orthopedic devices and in controlled release of drugs. PHBV undergoes bacterial degradation in the environment.

Nylon 2-Nylon 6 is an alternating polyamide copolymer of glycine $(H_{2} N - C H_{2} - C O O H)$ and aminocaproic acid $[N H_{2} (C H_{2})_{5} C O O H]$ and is biodegradable.

Nylon 6,6 and Nylon 6 are polyamide and hence not biodegradable polymer.

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