テレフタリルフェニルヒドラジドクロリドによるゴムの加硫

概要

論文の詳細を見る
Unsaturated rubbers such as BR, SBR and IR were found to be easily vulcanized by heating with terephthaloyl phenylhydrazide chloride (TPC) in the presence of hydrogen chloride acceptors, e.g., triethylamine, triethanolamine and lead oxide. The TPC vulcanizate was excellent in heat resistance under the oven aging and the strength of the vulcanizate was analogous to that of usual sulfur-accelerated vulcanizate.<BR>A mechanism was proposed for this non-sulfur vulcanization; the bases such as triethylamine eliminate hydrogen chloride from TPC to afford dinitrilimine dipole, which forms a pyrazoline ring by 1, 3-dipolar cycloaddition reaction with carbon-carbon double bond of rubber to give a vulcanizate.<BR>Moreover, sheets of BR and SBR carbon black stocks compounded with TPC were vulcanized by dipping in triethylamine-ethanol solution.
日本ゴム協会の論文