Question

Which among the following is NOT a polyester polymer ?

• A. Glyptal
• B. Novolac
• C. PHBV
• D. Dacron

Hint:

Novolac is a phenol-formaldehyde polymer, not a polyester.

Answer 1

The Correct Option is B

Step 1: Look for ester links
Glyptal, PHBV and Dacron all have -COO- in the chain.

Step 2: Odd one
Novolac is built from phenol and methanal with CH2 bridges.

Step 3: Answer
Option (B).

Final Answer:
Option (B). \[ \boxed{\text{Novolac}} \]