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以氯端基聚苯乙烯为大分子引发剂 ,氯化亚铜/2,2′-联二吡啶为催化剂 ,邻二甲苯为溶剂 ,用气相色谱分别研究了对二乙烯基苯(p-DVB)和间二乙烯基苯(m -DVB)在100～130℃的原子转移自由基聚合动力学。结果表明 ,聚合符合表观一级反应动力学。p -DVB在100 ,110,120 ,130℃的聚合速率常数分别为0.072 ,0.128,0.379 ,0.546h-1,m -DVB在上述不同温度的聚合速率常数分别为0.043 ,0.087 ,0.199 ,0.310h -1 ,p-DVB的聚合速率大于m -DVB的。m -DVB和 p-DVB聚合的表观活化能分别为84.1kJ/mol和89.2kJ/mol,两数值接近 ,表明温度对 p-DVB和m -DVB原子转移自由基聚合速率的影响程度相当
Using chlor-terminated polystyrene as macroinitiator, cuprous chloride / 2,2’-bipyridyl as catalyst and o-xylene as solvent, the effects of p-DVB ) And meta-divinylbenzene (m-DVB) at 100-130 ° C for the atom transfer radical polymerization kinetics. The results show that the polymerization accords with apparent first order reaction kinetics. The polymerization rate constants of p-DVB at 100, 110, 120 and 130 ℃ were 0.072, 0.128, 0.379 and 0.546 h-1 respectively. The polymerization rate constants of m-DVB at different temperatures were 0.043, 0.087, 0.199 and 0.310 h -1 , the polymerization rate of p-DVB is greater than m-DVB. The apparent activation energies of m-DVB and p-DVB polymerization are 84.1 kJ / mol and 89.2 kJ / mol, respectively, which are close to each other, indicating that the effect of temperature on the rate of atom transfer radical polymerization of p-DVB and m-