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环戊二烯基(或茚基)轻烯土二氯化物C_5H_5NdCl_2·nC_4H_8O(C_5H_5为环戊二烯基、C_4H_8O为四氢呋喃、Ln代表Pr或Nd、n=0,1,2,3)、C_5H_5LnCl_2·HCl·nC_4H_8O、C_9H_7LnCl_2·nC_4H_8O和C_9H_7LnCl_2·HCl·nC_4H_8O(C_9H_7为茚基)能与烷基铝组合形成一类新型丁二烯聚合催化剂,虽然稀土催化丁二烯聚合反应动力学已有报道,但是其催化体系、聚合条件和研究方法各不相同。过去的研究多应用稳态动力学处理方法侧重于聚合速度的研究。本文的目的在于通过聚合物活性链的变化,考察C_5H_5NdCl_2·nC_4H_8O
Cyclopentadienyl (or indenyl) sebacicotin dichloride C_5H_5NdCl_2 · nC_4H_8O (C_5H_5 is cyclopentadienyl, C_4H_8O is tetrahydrofuran, Ln represents Pr or Nd, n = 0, 1, 2, 3), C_5H_5LnCl_2 · HCl · nC_4H_8O, C_9H_7LnCl_2 · nC_4H_8O and C_9H_7LnCl_2 · HCl · nC_4H_8O (C_9H_7 is indenyl) can combine with alkyl aluminum to form a new type of butadiene polymerization catalyst. Although the kinetics of butadiene polymerization catalyzed by rare earth has been reported, But its catalytic system, polymerization conditions and research methods vary. In the past, multi-application steady-state kinetic methods focused on the study of the rate of polymerization. The purpose of this paper is to study the changes of C 5 H 5 SnCl 2 · nC 4 H 8 O