Question:
Which from following is a polyester fibre?
Which from following is a polyester fibre?
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A polyester has ester linkages in its chain. Check which polymer in the list is built through ester bonds.
Updated On: Nov 13, 2026
- PHBV
- Urea formaldehyde
- Thermocol
- Polyacrylonitrile
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
A polyester is formed by condensation of hydroxy acids or of diols with dicarboxylic acids, so the chain contains ester groups.
Step 2: Check the Options
PHBV (poly-\(\beta\)-hydroxybutyrate-co-\(\beta\)-hydroxyvalerate) is a copolyester of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid.
Urea formaldehyde is a thermosetting amino resin, thermocol is expanded polystyrene and polyacrylonitrile is an addition polymer (acrylic fibre).
Step 3: Compare the options
Only PHBV is a polyester.
Final Answer:
PHBV is the polyester. \[ \boxed{\text{(A) }\text{PHBV}} \]
A polyester is formed by condensation of hydroxy acids or of diols with dicarboxylic acids, so the chain contains ester groups.
Step 2: Check the Options
PHBV (poly-\(\beta\)-hydroxybutyrate-co-\(\beta\)-hydroxyvalerate) is a copolyester of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid.
Urea formaldehyde is a thermosetting amino resin, thermocol is expanded polystyrene and polyacrylonitrile is an addition polymer (acrylic fibre).
Step 3: Compare the options
Only PHBV is a polyester.
Final Answer:
PHBV is the polyester. \[ \boxed{\text{(A) }\text{PHBV}} \]
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