Glyptal is obtained from the condensation polymerisation of ethylene glycol with _______(a) terephthalic acid(b) phthalic acid(c) isophthalic acid(d) trimesic acidI got this question in an interview for internship.My question is taken from Types of Polymerisation Reactions in division Polymers of Chemistry – Class 12

Glyptal is obtained from the condensation polymerisation of ethylene g

1.	Glyptal is obtained from the condensation polymerisation of ethylene glycol with _______(a) terephthalic acid(b) phthalic acid(c) isophthalic acid(d) trimesic acidI got this question in an interview for internship.My question is taken from Types of Polymerisation Reactions in division Polymers of Chemistry – Class 12
Answer» The correct OPTION is (b) phthalic acid To explain: GLYPTAL is a POLYESTER (containing COO linkages) obtained from the polycondensation reaction of ethane-1,2-diol and benzene-1,2-dicarboxylic acid (phthalic acid). It is cross-linked polymer.

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