The function of sulphur during the vulcanization of rubber is to ____________
A. Act as catalyst for the polymerization of rubber molecules B. Covert rubber from thermosetting thermo plastic polymer C. Form chains which bind rubber molecular together D. Break down rubber polymer molecule E. Shorter the chain length of rubber polymer
Correct Answer: C
Explanation
During vulcanization, sulphur is added to rubber to form cross - linkages (through the formation of disulphide bonds) that prevents chain slippage. Vulcanization increases the tensile strength, hardness and temperature durability of rubber.
