Metallocene catalysis in the complex-radical polymerization of methyl methacrylate

被引：0
|
作者：
N. N. Sigaeva
A. K. Friesen
I. I. Nasibullin
N. L. Ermolaev
S. V. Kolesov
机构：
[1] Russian Academy of Sciences,Institute of Organic Chemistry, Ufa Scientific Center
[2] Ufa,Institute of Applied Physics
[3] Russian Academy of Sciences,undefined
来源：
Kinetics and Catalysis | 2012年 / 53卷
关键词：
Benzoyl Peroxide; Titanocene Dichloride; Methyl Methacrylate Polymerization; Acetylferrocene; Zirconocene Dichlo Ride;
D O I：
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学科分类号：
摘要：
The initiation stage of methyl methacrylate polymerization in the presence of benzoyl peroxide-metallocene (MC) systems is considered, with MC = Cp2Fe, (C5Me5)2Fe, (AcC5H4)(C5H5)Fe, Cp2TiCl2, Cp2ZrCl2, and (C5Me5)2ZrCl2. The decomposition of benzoyl peroxide in the presence of a metallocene proceeds via the formation of its complex with the metallocene. The catalytic effect of the metallocenes on the initiation of methyl methacrylate polymerization is due to the formation of a metallocene-benzoyl peroxide complex and its decomposition yielding primary radicals. The chain propagation stage is metallocene-dependent, which is explained by the formation of complex sites. Their formation pathway and structures are analyzed using quantum-chemical calculations.
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页码：470 / 476
页数：6
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