期刊
COORDINATION CHEMISTRY REVIEWS
卷 250, 期 1-2, 页码 242-258出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ccr.2005.05.012
关键词
ansa-metallocene; metallocene catalyst; olefin polymerization; bridged ligand; isotactic polypropylene; syndiotactic polypropylene
Ansa-metallocene complexes have been extensively studied as the precatalysts for olefin polymerization. The bridges have important effects on the activities of the catalysts and polymer properties such as molecular weight and tacticity, mainly by altering the frame work of the catalysts. Here, we review the effects of the structures of ansa-metallocene complexes on the catalytic activities, especially the effects of the bridges on the catalytic activities. (c) 2005 Elsevier B.V. All rights reserved.
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