文献类型：期刊文献

英文题名：Stereospecific polymerization of styrene with novel half-sandwich titanium complexes - RCpTi(o-MeOPhCPh2O)Cl2/ methylaluminoxane

作者：Chen, Qihui[1]; Huang, Jiling[1]

机构：[1] Laboratory of Organometallic Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China

年份：2006

卷号：55

期号：1

起止页码：19

外文期刊名：Polymer International

收录：EI(收录号：2006039648844)

语种：英文

外文关键词：Catalysts - Characterization - Polymerization - Solvents - Synthesis (chemical) - Thermodynamic stability - Titanium

摘要：Two new half-sandwich titanocene catalysts for the stereospecific polymerization of styrene, RCpTi(o-MeOPhCPh2O)Cl2 (R = H (1); R = Me (2)), were prepared by reaction of the corresponding RCpTiCl3 complexes with o-methoxyphenyldiphenylmethanol (o-MeOPhCPh2OH) in the presence of triethylamine. Upon activation with excess methylaluminoxane (MAO), they showed high activities and high thermal stabilities for the stereospecific polymerization of styrene. The influences of polymerization temperature, Al/Ti molar ratio, solvent (aliphatic or aromatic) and time on the activity and syndiotacticity of the styrene polymerization were investigated. ? 2006 Society of Chemical Industry.