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What are the monomers of PHBV?

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in Chemistry – Class 12 by (188k points)
What are the monomers of PHBV?

(a) 2-Hydroxybutanoic acid, 2-hydroxypentanoic acid

(b) 2-Hydroxybutanoic acid, 3-hydroxypentanoic acid

(c) 3-Hydroxybutanoic acid, 2-hydroxypentanoic acid

(d) 3-Hydroxybutanoic acid, 3-hydroxypentanoic acid

I have been asked this question in final exam.

Query is from Biodegradable Polymers in section Polymers of Chemistry – Class 12

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Right option is (d) 3-Hydroxybutanoic acid, 3-hydroxypentanoic acid

Easy explanation: PHBV is short for poly β-hydroxybutyrate-co-β-hydroxy valerate. This shows that is a copolymer of β-hydroxybutyrate (3-hydroxybutanoic acid) and β-hydroxy valerate (3-hydroxypentanoic acid). PHBV is biodegradable as it can be decomposed by bacteria.

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