Question:
The fibre forming polymer which contains aromatic group in the main chain is:
The fibre forming polymer which contains aromatic group in the main chain is:
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Aromatic groups in polymer chains improve rigidity and thermal stability. Look for benzene rings in the backbone structure when identifying such polymers.
Updated On: Apr 28, 2025
- Poly(ethylene terephthalate)
- Polypropylene
- Polyacrylonitrile
- Ultra-high molecular weight polyethylene
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The Correct Option is A
Solution and Explanation
Understand the polymer structures.
Poly(ethylene terephthalate) (PET) contains a benzene ring (aromatic group) in its backbone due to the presence of the terephthalic acid unit.
Polypropylene and Ultra-high molecular weight polyethylene are aliphatic polymers with no aromatic rings.
Polyacrylonitrile contains a nitrile group, but not an aromatic ring in the main chain.
Therefore, only PET contains an aromatic group in the main chain.
Poly(ethylene terephthalate) (PET) contains a benzene ring (aromatic group) in its backbone due to the presence of the terephthalic acid unit.
Polypropylene and Ultra-high molecular weight polyethylene are aliphatic polymers with no aromatic rings.
Polyacrylonitrile contains a nitrile group, but not an aromatic ring in the main chain.
Therefore, only PET contains an aromatic group in the main chain.
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