Which of the following sets of polymers is biodegradable?
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Nylon 6, 6 and rayon
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Polystyrene and PHBV
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PVC and teflon
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PHBV and Nylon 2–nylon 6
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Nylon 2–nylon 6 and PVC
D
Correct answer
Explanation
Poly β-hydroxybutyrate – co- β -hydroxy valerate (PHBV) is a biodegradable polymer obtained by the copolymerisation of 3-hydroxybutanoic acid and 3 - hydroxypentanoic acid.
Nylon 2–nylon 6 is an alternating polyamide copolymer of glycine (H2N–CH2–COOH) and amino caproic acid [H2N (CH2)5 COOH] and is biodegradable.