Chemistry - Polymer Question with Solution | TestHub

Polymers are classified based on the magnitude of intermolecular forces into four categories: elastomers, fibres, thermoplastic polymers, and thermosetting polymers.

Fibres are thread-forming solids which possess high tensile strength and high modulus. These characteristics are due to strong intermolecular forces like hydrogen bonding or dipole-dipole interactions, which lead to close packing of chains and impart crystalline nature. Examples include polyamides (nylon 6, 6) and polyesters (terylene).

Vulcanized rubber is classified as an elastomer.

Polythene and polyvinyls are classified as thermoplastic polymers.

Therefore, polyesters are classified as fibres.

Answer: Polyesters