Which of the following is not condensation polymer?
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Melamine
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Glyptal
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Dacron
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Neoprene
D.
Neoprene
Condensation polymers are obtained by bifunctional molecules (monomers) with the elimination of smaller molecules whereas additional polymers are obtained from multiple bonds containing monomers. Neoprene is a polymer of chloroprene (CH2 =C(Cl)-C=CH2) so it is an addition polymer, not a condensation polymer.