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测定了分别添加烯丙基氯、烯丙基溴或烯丙基碘的MoCl_2(OC_(10)H_(21))_2-Al(i-Bu)_2OPhCH_3体系催化丁二烯聚合反应的主要动力学参数及催化剂性能。烯丙基卤的类型对聚合反应的诱导期无明显影响。添加C_3H_5Br或C_3H_5Cl可降低表观活化能和指前因子,但对表观总反应速率常数无明显影响。添加C_3H_5Br能使聚合物分子量下降,可作为分子量调节的一种有效手段。
The main kinetics of butadiene polymerisation catalyzed by MoCl_2 (OC_ (10) H_ (21)) _2-Al (i-Bu) _2OPhCH_3 system with allyl chloride, allyl bromide or allyl iodide Parameters and catalyst performance. The type of allyl halide had no significant effect on the induction period of the polymerization reaction. The addition of C_3H_5Br or C_3H_5Cl reduced the apparent activation energy and pre-exponential factors, but had no obvious effect on the apparent reaction rate constant. Add C_3H_5Br polymer molecular weight can be reduced, as an effective molecular weight adjustment means.