高等学校化学学报

高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (10): 945.

• 研究论文 • 上一篇    

四价钼体系催化丁二烯聚合动力学

夏少武, 王昌民, 徐玲, 唐学明   

  1. 青岛化工学院
  • 收稿日期:1984-08-25 出版日期:1985-10-23 发布日期:1985-10-23

Kinetics of Butadiene Polymerization with Molybdenum (IV) Catalyst System

Xia Shaowu, Wang Changmin, Xu Ling, Tang Xueming   

  1. Qinqdao Institute of Chemical Engineering, Qingdao
  • Received:1984-08-25 Online:1985-10-23 Published:1985-10-23

PDF (PC)

被引次数

16

摘要： 本文报导了MoCl2(n-C8H17O)2-(i-Bu)2AlOph体系催化丁二烯聚合动力学研究结果,得到聚合速率方程式R=k(C)O(2)[M]=kpa(c)o(M),表观活化能18.6千卡/摩尔,指数前因子1.6×1010分-1,以及不同温度下的催化剂利用率,活性中心浓度,活性中心平均寿命等,还证明了等聚合速率的聚合时间tO与活性中心平均寿命相近。

Abstract: Kinetics on the polymerization of butadiene with MoCl2(n-C8H17O)2- (i-Bu)2 AlOph as catalyst has been studied. The result shows that the polymerization is a first order reaction for both Mo(Ⅳ) catalyst arid monomer. The apparent activation energy for the polymerization is 18.5 Kcal mol-1 and the preexponential factor 1.6 × 1010 min-1. Some of the kinetic parameters, such as the efficiency of catalyst (α), the concentration of active center (P), and the meen lifetime of living polymer chain (τ) in different temperatures have been determined. This has proved that the time of equal rate polymerization (τ0) is approximately equal to the lifetime of living polymer chain (τ).

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