Which one of the following polymers is not obtained by condensation polymerisation?
Show Hint
- Bakelite
- Nylon 6
- Buna-N
- Nylon 6, 6
The Correct Option is C
Solution and Explanation
Nylon 6: from caprolactam heated with water, a polyamide; NCERT lists it with condensation polymers.
Nylon 6,6: hexamethylenediamine + adipic acid, condensation (water lost).
Buna-N: 1,3-butadiene + acrylonitrile, addition (chain-growth) copolymerisation, with no small molecule eliminated.
So Buna-N is the polymer not obtained by condensation polymerisation.
Answer: (3) Buna-N
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