Example of a biodegradable polymer pair is

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(B) The polymers which disintegrate by themselves during a certain period of time by enzymatic hydrolysis and to some extent by oxidation are known as

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$PHBV$ and dextron

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(B) The polymers which disintegrate by themselves during a certain period of time by enzymatic hydrolysis and to some extent by oxidation are known as biodegradable polymers.Examples include:$1$. Poly-$\beta$-hydroxybutyrate-co-$\beta$-hydroxyvalerate $(PHBV)$, which is used in orthopaedic devices and in controlled drug release.$2$. Poly(glycolic acid)-poly(lactic acid), commonly known as $Dexon$ (or dextron), which is used for stitching of wounds after surgery.

$CH_2=CH-C_6H_5$	$H_2N(CH_2)_6NH_2$	$CH_2=CH-CH=CH_2$	$CH_2=CH-CN$	$HO_2C(CH_2)_4CO_2H$
$A$	$B$	$C$	$D$	$E$

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