CIESC Journal

• 材料科学与工程 • 上一篇    下一篇

茂金属催化剂/MAO催化1-癸烯齐聚合及其产物的结构与性能

盛亚平 黄启谷 陈伟 杨万泰   

  1. 北京化工大学化工资源有效利用国家重点实验室,材料科学与工程学院;中国石油化工股份有限公司北京化工研究院 中石化北京化工研究院 北京化工大学聚合物科学系106信箱*
  • 出版日期:2007-03-05 发布日期:2007-03-05

Synthesis and characterization of oligomer from 1-decene catalyzed by metallocene complex/MAO

  

  • Online:2007-03-05 Published:2007-03-05

摘要: 用均相茂金属催化剂(n-Bu)Cp2ZrCl2/MAO对1-癸烯的齐聚合进行了研究。探讨了齐聚温度、Al/Zr摩尔比值、助催化剂、反应时间及催化剂浓度对齐聚反应的影响。 采用GC-MS、GC和13C NMR对齐聚物的组成和结构进行了表征。GC-MS和GC的分析结果表明所得齐聚物是由二聚体、三聚体、四聚体和五聚体组成。13C NMR分析结果表明1-癸烯齐聚时存在键接异构,主要是头-尾键接的1,2插入,也存在头-头、尾-尾键接的2,1插入。

Abstract: The synthesis of oligomer from 1-decene with metallocene catalyst(n-Bu)Cp2ZrCl2/MAO was studied.The effects of temperature, Al/Zr ratio, time and concentration of the catalyst on oligomerization behavior were investigated.The oligomer obtained was characterized with GC-MS, GC and 13C NMR.Those results confirmed that the oligomer was a mixture consisting of di-, tri-, tetra- and pentamer.The 13C NMR data also implied that chain propagation of the oligomer involved primarily head-to-tail 1, 2-insertions, as well as head-to- head, tail-to-tail, 2, 1-insertions.