双[N,O]配体合镍配合物/甲基铝氧烷催化降冰片烯与苯乙烯的均聚和共聚  

Homo-and Co-Polymerization of Norbornene and Styrene with Novel Bis[N,O] Ligand Nickel Complex/Methylaluminoxane Catalyst

作　　者：陈晓丽[1] 祝方明[1] 林尚安[1] 

机构地区：[1]中山大学化学与化学工程学院高分子研究所,广东广州510275

出　　处：《石油化工》2007年第8期799-803,共5页Petrochemical Technology

基　　金：国家自然科学基金重点资助项目(20334030);广东省自然科学基金团队资助项目(039184)

摘　　要：研究了新型双[N,O]配体合镍配合物双[水杨醛(对硝基苯)亚胺]合镍/甲基铝氧烷体系催化降冰片烯(NBE)和苯乙烯(St)的均聚和共聚的催化性能,考察了聚合温度、Al与Ni摩尔比对催化活性和均聚物相对分子质量的影响;考察了单体投料比对NBE和St共聚性能的影响。实验结果表明,NBE和St在较高温度(50℃)均聚时的催化活性分别为105g/(mol·h)和106g/(mol·0.5h);NBE与St共聚时的催化活性高达105g/(mol·h)。A novel nickel complex, bis [ N - （ 4 - nitrophenyl ） - salicylaldiminate ] nickel was synthesized and used as catalyst in homo - and co - polymerization of both norbomene and styrene. The polymerization processes with bis [ N - （ 4 - nitrophenyl ） - salicylaldiminate ] nickel/ methylaluminoxane catalytic system was investigated. Effects of polymerization temperature and mole ratio of Al to Ni on both activity of the catalyst and weight - average relative molecular masses of obtained polymer were studied. Effect of monomer feed ratio on copolymerization of norbomene and styrene was investigated. At polymerization temperature of 50 ℃, catalytic activities of the catalyst in homopolymerizations of both norbomene and styrene can reach 10^5 g/（ mol · h） and 10^6 g/（ mol · 0.5 h）, respectively. The catalytic activity of the catalyst in copolymerization of norbomene and styrene is also up to 10^5 g/（mol · h）.

关 键 词：双[水杨醛(对硝基苯)亚胺]合镍 甲基铝氧烷 降冰片烯 苯乙烯 均聚 共聚 催化 

分 类 号：TQ316.3[化学工程—高聚物工业]