Mechanistic studies of olefin polymerizations catalyzed by Pd(II) and Ni(II) diimine complexes

被引：0
|
作者：
Huff, R. Leigh [1 ]
Svejda, Steven A. [1 ]
Tempel, Daniel J. [1 ]
Leatherman, Mark D. [1 ]
Johnson, Lynda K. [1 ]
Brookhart, M. [1 ]
机构：
[1] Department of Chemistry, Univ. of N. Carolina at Chapel Hill, Chapel Hill, NC 27599-3290, United States
来源：
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry | 2000年 / 41卷 / 01期
关键词：
Aluminum compounds - Catalysts - Molecular structure - Nickel - Nuclear magnetic resonance spectroscopy - Palladium - Polymerization - Synthesis (chemical);
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摘要：
The synthesis of new single-site olefin polymerization catalysts is studied. To initiate polymerizations using the Pd(II) catalysts, soluble salts of general structure are employed, while entry into the Ni(II) systems is made through methylaluminoxane (MAO) activation of the Ni(II) dihalide complexes. Based on NMR studies, the mechanism shown is proposed to account for ethylene and α-olefin polymerization, using ethylene for simplicity.
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页码：401 / 402
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