Microemulsion polymerization. 2. Influence of monomer partitioning, termination, and diffusion limitations on polymerization kinetics

被引：42

作者：

de Vries, R ^{[1
]}

Co, CC ^{[1
]}

Kaler, EW ^{[1
]}

机构：

[1] Univ Delaware, Dept Chem Engn, Ctr Mol & Engn Thermodynam, Newark, DE 19716 USA

来源：

MACROMOLECULES | 2001年 / 34卷 / 10期

关键词：

D O I：

10.1021/ma001247j

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We investigate the polymerization kinetics of microemulsions prepared with the cationic surfactant dodecyltrimethylammonium bromide and the hydrophobic monomers n-butyl methacrylate. tert-butyl methacrylate, n-hexyl methacrylate, and styrene. Our previous model for microemulsion polymerization kinetics cannot account for the kinetics of these systems. Using the results of small-angle neutron scattering monomer partitioning studies and an extended kinetic model to analyze the data, the failure of the original kinetic model is shown to be due to a combination of nonlinear monomer partitioning, nonnegligible bimolecular termination, and, in some cases, diffusion limitations to propagation.

引用

页码：3233 / 3244

页数：12

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