JEE Main · 2022 · 26 Jul 2022 · Shift 2 · Polymers

Vulcanization of rubber is carried out by heating a mixture of :

(A)isoprene and styrene
(B)neoprene and sulphur
(C)isoprene and sulphur✓ Correct
(D)neoprene and styrene

Answer: (C)

Solution

Vulcanization is the process of treating natural rubber (polyisoprene) with sulfur at elevated temperatures to form cross-links between polymer chains. This improves the mechanical properties, elasticity, and durability of rubber. The process involves heating a mixture of isoprene (the monomer unit of natural rubber) and sulfur, which forms disulfide bridges between the polymer chains.

JEE Main · 2022 · 26 Jul 2022 · Shift 2 · Single correct option

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