镍系催化丁二烯聚合的行为

Behaviour on Polymerization of Butadiene with Nickel Catalyst System

本文研究了以(简称Ni—Al—B)为催化体系,加氢汽油为溶剂的丁二烯聚合的动力学行为。实验结果表明,在本实验范围内,聚合速率与主催化剂浓度[Ni]无关,对单体浓度[Bd]呈一级关系。当Al/B<1时,聚合速率方程式可表示为当Al/B>1时,聚合速率方程式可表示为: 此结果和吉本、焦书科等得出的结论不同,较明确地给出了聚合活性与镍系催化剂各组分之间的定量关系。本催化体系聚合表现活化能为25.4KJ·mol^(-1)。

The rate of polymerization of butadiene catalyzed by [Ni(naph)_2-Al (i-Bu)_3 + Me-(?)-OH_3]-(BF_3OEt_2 +n-C_8H_(17)OH)(Shortened as Ni-Al-B) system was investigated. In the experimental condition, was found that the equation of the rate is expressed asThe apparent activation energy is 25. 4KJ.mol^(-1).