Microemulsion polymerization. 1. Small-angle neutron scattering study of monomer partitioning

被引：35

作者：

Co, CC ^{[1
]}

de Vries, R ^{[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/ma001246r

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

To achieve a better understanding of the kinetics of microemulsion polymerization, we have examined monomer partitioning between micelles and polymer particles during polymerization of aqueous microemulsions of dodecyltrimethylammonium bromide surfactant and styrene, n-butyl methacrylate, tert-butyl methacrylate: and n-hexyl methacrylate monomers. Polymerizing microemulsions are simulated by equilibrium mixtures of unpolymerized and fully polymerized microemulsions for which the monomer partitioning is accurately measured using small-angle neutron scattering. Experimental results are semiquantitatively reproduced by modeling the monomer partitioning as a competition between the Flory-Huggins bulk polymer free energy and the Helfrich curvature elastic energy of the surfactant monolayers.

引用

页码：3224 / 3232

页数：9

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