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研究了以正丁基锂为引发剂 ,异戊二烯在二氧六环溶剂中负离子聚合的动力学。结果表明 ,增长反应对单体浓度和引发剂浓度皆为一级反应 ,活化能为45.22kJ/mol,频率因子为4.832×108L/(mol·min) ,并求出了生成1,4 -结构、1,2 -结构和3,4 -结构产物的速率常数分别为2.77×1012exp( -74760/RT) ,9.82×106exp( -39190/RT) ,8.02×107exp( -41180/RT)。
The kinetics of anionic polymerization of isoprene in dioxane with n-butyl lithium as initiator was studied. The results showed that both the monomer concentration and the initiator concentration were the first order reaction and the activation energy was 45.22 kJ / mol and the frequency factor was 4.832 × 108 L / (mol · min). The 1,4 - structure , 1,2 - structure and 3,4 - structure were 2.77 × 1012exp (-74760 / RT), 9.82 × 106exp (-39190 / RT) and 8.02 × 107exp (-41180 / RT) respectively.