Polymerization of ethylene with cationic palladium and nickel catalysts containing bulky nonenolizable imine-phosphine ligands

被引：93
|
作者：
Daugulis, O [1 ]
Brookhart, M [1 ]
机构：
[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA
来源：
ORGANOMETALLICS | 2002年 / 21卷 / 26期
关键词：
D O I：
10.1021/om0206305
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A number of bulky, nonenolizable Pd(II) and Ni(II) imine-phosphine complexes have been synthesized and tested in the ethylene polymerization. These catalysts show improved temperature stability with respect to the corresponding diimine complexes. Nickel imine-phosphine precatalysts containing gem-dimethyl substituent a to phosphorus display moderate activity and produce substantially higher molecular weight polyethylene compared to the corresponding enolizable complexes.
引用
收藏
页码：5926 / 5934
页数：9
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