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- Engineering
- Which among the following is not a polyester?Option: 1 Option: 2 Op
Which among the following is not a polyester?
Option: 1 
Option: 2 
Option: 3 
Option: 4 
Answers (1)
As we have learnt,
Novalac is a condensation polymer of phenol and formaldehyde. It is not a polyester.
The other polymers are polyesters and their monomers are given below:
Glyptal : Phthalic acid and Ethylene Glycol
PHBV : -hydroxy-Butanoic acid and
-hydroxy-Pentanoic acid.
Dacron: Terephthalic acid and Ethylene Glycol
Hence the correct answer is option (3)
View full answer
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