钴系双亚胺基吡啶配合物/甲基铝氧烷体系催化乙烯齐聚  

ETHYLENE OLIGOMERIZATION WITH COBALT-BASED CATALYSTS BEARING 2,6-BIS(IMINO)PYRIDYL LIGANDS/METHYLALUMINOXANE

作　　者：李光辉[1] 黄英娟[1] 李贺新[1] 孔维苓[1] 闫卫东[1] 

机构地区：[1]河北工业大学化工学院高分子科学与工程研究所,天津300130

出　　处：《精细石油化工》2004年第1期1-4,共4页Speciality Petrochemicals

基　　金：天津市自然科学基金重点项目 ( 0 2 3 80 2 2 11);工程塑料国家重点实验室开放基金 (SKLEP0 0 62 );河北省自然科学基金 ( 2 0 2 0 0 8)

摘　　要：合成了 2种双亚胺基吡啶钴系催化剂 ,以甲苯为溶剂 ,甲基铝氧烷 (MAO)为助催化剂 ,用于催化乙烯齐聚合成线性α 烯烃。探讨了催化剂浓度、反应温度、n(Al) /n(Co)以及苯胺的不同对位取代基等因素对催化活性和齐聚产物分布的影响 。Two kinds of cobalt-based catalysts bearing 2,6-bis(imino)pyridyl ligands (Ⅰ,Ⅱ) were prepared and ethylene oligomerizations were carried out by using both catalysts activated with methylaluminoxane (MAO) in toluene. The effects of the concentration of catalyst, molar ratio of aluminum to cobalt, and reaction temperature on the catalytic activity and the carbon chain distribution of α-olefin were investigated, and some relationship between the reaction factors and the properties of the catalysts were observed.

关 键 词：钴系催化剂 双亚胺基吡啶 甲基铝氧烷 催化活性 聚乙烯 a-烯烃 

分 类 号：TQ426.8[化学工程]