Vulcanization radically improves the physical properties of natural rubber by heating it with sulphur. At which specific molecular positions on the polyisoprene chains do the sulphur cross-links prima

Question

Vulcanization radically improves the physical properties of natural rubber by heating it with sulphur. At which specific molecular positions on the polyisoprene chains do the sulphur cross-links primarily form?

Prashant Kotian · Accepted Answer

Correct answer: C. Sulphur stiffens the rubber by forming covalent cross-links ( bridges), primarily by attacking the highly reactive allylic carbon sites adjacent to the double bonds or by adding directly across the double bonds.

💡 Solution & Explanation

Practice 22,000+ questions like this