水杨醛亚胺镍/MMAO催化降冰片烯加成聚合  

Addition Polymerization of Norbornene by Salicylaldimnato-nickel(Ⅱ) Complex

作　　者：李艳荣[1] 李悦生[1] 史保川[2] 

机构地区：[1]中国科学院长春应用化学研究所高分子物理与化学国家重点实验室,长春130022 [2]南京师范大学化学与环境科学学院

出　　处：《应用化学》2002年第7期617-620,共4页Chinese Journal of Applied Chemistry

基　　金：国家重点基础研究项目 (G19990 64 80 1)

摘　　要：用水杨醛亚胺镍 / MMAO催化降冰片烯聚合获得了热稳定、高分子量、可溶性的加成聚合产物 . Al、Ni摩尔比、单体浓度、反应温度与时间对催化剂的活性和聚合物分子量均有较大影响 .在优化条件下 ,催化剂的活性达 1 3 t/ (mol· h) ,聚降冰片烯的粘均分子量达 1× 1 0 6.The salicylaldimnato Ni(Ⅱ) complexes activated with modified methylaluminoxane(MMAO) as catalysts were employed in addition polymerization of norbornene to give soluble polymer with hight molecular weight. The catalytic activity, polymer yield, and molecular weight of polymer product were found significantly depended on the reaction condifions, such as n (Al)/ n (Ni) ratio, monomer concentration and polymerization reaction temperature and time. The catalyst activity of up to 1 3×10 7 g/(mol·h), and viscosity average molecular weight of polymer of up to 10 6 were obtained at optimum condition.

关 键 词：水杨醛亚胺 镍配合物 聚降冰片烯 加成聚合 甲基铝氧烷 催化刘 降冰片烯 

分 类 号：O632.12[理学—高分子化学] O643.32[理学—化学]