Ethylene Polymerization by Self‐Immobilized Neutral Nickel Catalysts Bearing Allyl Groups
作者:Dao Zhang、Guo‐Xin Jin、Ning‐Hai Hu
DOI:10.1002/ejic.200390205
日期:2003.4
synthesized and characterized. The molecular structure of 4 was determined by single-crystal X-ray analysis. Complexes 2-5 bearing allyl groups have been investigated as self-immobilized catalysts for ethylene polymerization without the use of co-catalysts. The high ethylene polymerization activities of ca. 10(5) g.PE mol(-1) Ni.h(-1) and high molecular weight (M-w approximate to 10(5)) of polyethylene could
[Ni(Ph)(PPh3)(N,O)] 含有苯基亚氨基苯酚配体 (N,O) 的配合物 (1: N,O = A; 2: N,O = B; 3: N,O = Q 4: N ,O = D; 5: N,O = E) 已被合成和表征。4的分子结构通过单晶X射线分析确定。带有烯丙基的配合物 2-5 已被研究作为不使用助催化剂的乙烯聚合的自固定催化剂。约的高乙烯聚合活性。10(5) g.PE mol(-1) Ni.h(-1) 和高分子量(Mw 近似于 10(5))的聚乙烯可以通过改变配体结构和反应条件来实现。催化剂的自固定使乙烯聚合的催化活性急剧增加。