Effect of two water-soluble polymers on the stability of the AOT-H2O-lamellar phase

被引：36

作者：

Ficheux, MF

Bellocq, AM

Nallet, F

机构：

[1] Centre de Recherche Paul-Pascal, CNRS, 33600 Pessac, avenue du Docteur-Schweitzer

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1997年 / 123卷

关键词：

water-soluble polymers; AOT-lamellar phase; charged surfactant bilayers; neutron scattering spectra;

D O I：

10.1016/S0927-7757(96)03802-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on the effect of two hydrosoluble neutral polymers on the stability of a lamellar phase made of charged surfactant bilayers. The ability of the polymers to interact with the surfactant molecules being usually investigated in dilute (micellar) solutions, we discuss the phase diagrams obtained in an extended concentration range. No perturbation is observed in the presence of PAM (polyacrylamide) while PEG (polyethyleneglycol) strongly affects the interactions occurring in the AOT (sodium di-2-ethylhexylsulfosuccinate) lamellar phase. The influence of the polymers on the smectic period and bilayer thickness is analyzed through X-ray experiments. Neutron scattering spectra are given as qualitative indications of the thermodynamic properties of the doped lamellar phases.

引用

页码：253 / 263

页数：11

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