Effect of PEG on the stability of AOT microemulsions

被引：16

作者：

Bellocq, AM

机构：

[1] Centre de Recherche Paul Pascal, CNRS, 33600 Pessac, Avenue A. Schweitzer

来源：

TRENDS IN COLLOID AND INTERFACE SCIENCE XI | 1997年 / 105卷

关键词：

AOT; W/O; microemulsions; lamellar phases; water-soluble polymer; phase behavior;

D O I：

10.1007/BF01188966

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The effect of polyethyleneglycol (PEG) [M-W = 20000, radius of gyration R-G = 30 Angstrom] On the phase behavior of the system made of AOT-water-isooctane is reported. It has been found that: (1) large amounts of polymer can be solubilized in the lamellar and microemulsions phases - upto 15% in weight of water can be replaced by polymer; (2) the solubility of PEG in the water-in-oil droplets depends on the relative sizes of the water core (R-W), the polymer (R-G) and the temperature and at high water-contents (3), PEG changes the sign of the spontaneous curvature of the surfactant film and induces an inversion of microemulsion type from oil-in-water to water-in-oil.

引用

页码：290 / 293

页数：4

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