POLYMERIZATION MECHANISM OF DIENES WITH HOMOGENEOUS RARE EARTH CATALYSTS
POLYMERIZATION MECHANISM OF DIENES WITH HOMOGENEOUS RARE EARTH CATALYSTS作者机构:Changchun Institute of Applied Chemistry Academia Sinica Changchun
出 版 物:《Chinese Journal of Polymer Science》 (高分子科学(英文版))
年 卷 期:1990年第8卷第2期
页 面:121-126页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学]
基 金:The Project is supported by "Laboratory of Physics & Chemistry Academia Sinica" and "National Natural Science Foundation of China"
主 题:Reaction mechanism Diene coordination polymerization Homogeneous rare earth catalyst η~4-diene, η~3-allyl.
摘 要:The reaction mechanisms of diene polymerization with homogeneous rare earth catalyst are studied by means of the spectra of ~1H-NMR, one-and two-dimensions ^(13)C-NMR. Based on the data of above NMR spectra, it is proposed that the polymerization reaction proceeds according to the following mechanism: η~4-diene (cis-trans-)and η~3-allyl (syn-anti-).