Q.
Polyvinyl alcohol is an important polymer. The structure is given below
It is prepared by polymerization of
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NTA AbhyasNTA Abhyas 2020Polymers
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Solution:
PVA is prepared by hydrolysis of polyvinyl acetate. Other vinyl ester-derived polymers are sometimes used, with formate, chloroacetate groups instead of acetate. The conversion of the polyesters is usually conducted by base-catalysed transesterification with ethanol: