Aqueous suspension polymerization of isobutene initiated by 1,2-C6F4[B(C6F5)2]2

被引:69
|
作者
Lewis, SP
Henderson, LD
Chandler, BD
Parvez, M
Piers, WE [1 ]
Collins, S
机构
[1] Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA
[2] Univ Calgary, Dept Chem, Calgary, AB, Canada
关键词
D O I
10.1021/ja0445387
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Lewis acidic, chelating diborane 1 forms stable oxonium acids 2 in the presence of excess MeOH or water. Diborane 1 is shown to be an effective co-initiator for the suspension polymerization of isobutene in aqueous media at sufficiently low temperatures. Poly(isobutene) or butyl rubber is obtained at moderate to high conversion and with Mw < 200 K and PDI ≈ 2 under these conditions. Copyright © 2005 American Chemical Society.
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页码:46 / 47
页数:2
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