MHT CET202615 April 2026Evening ShiftChemistryPolymersActual
Which among the following is NOT a polyester polymer ?
Options
- AGlyptal
- BNovolac
- CPHBV
- DDacron
Correct answer
B. Novolac
Step-by-step solution
Glyptal is a polyester polymer formed by the condensation of ethylene glycol and phthalic acid. PHBV (Poly -hydroxybutyrate-co- -hydroxyvalerate) is a biodegradable aliphatic polyester. Dacron (Terylene) is a polyester polymer formed by the condensation of ethylene glycol and terephthalic acid. Novolac is a linear condensation polymer of phenol and formaldehyde, which does not contain ester linkages. Therefore, it is not a polyester polymer. Answer: Novolac