摘要
研究了不同铜盐对溴代苯酚聚合反应产率的影响,利用Taft取代基常数作为考察指标,得出∑σ*>5.5时,铜(Ⅱ)盐有催化活性,而钢(Ⅰ)盐则无催化活性,并利用ESR(ElectronSpinResonance)检测出反应体系中有酚氧自由基的存在.
Studies the copper salt-catalyzed polymerization of 2, 4, 6-tribromophenol with the different copper salt catalysts. Copper(Ⅱ) salt has catalytic activity when Taft substituent constant ∑σ >5. 5, but copper(Ⅰ) salt has no catalytic activity. The phenoxy radical, considered as an intermediate of the reaction, was detected by ESR.