On the role of the activity coefficient in the processes of diffusion of ionic surfactants in micellar solutions

被引：6

作者：

Rusanov, A. I. ^{[1
,2
]}

Movchan, T. G. ^{[1
]}

Plotnikova, E. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia

[2] St Petersburg State Univ, St Petersburg 198504, Russia

来源：

COLLOID JOURNAL | 2015年 / 77卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

AQUEOUS-SOLUTIONS;

D O I：

10.1134/S1061933X15040171

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：

Theoretical relations are formulated to describe the effect of an activity coefficient reflecting interparticle interaction on the diffusion coefficient of a surfactant in a micellar system. The activity coefficient of hexadecyltrimethylammonium bromide in an aqueous micellar solution is measured with a bromide-selective electrode. Analysis of the data obtained shows that, above the critical micelle concentration, surfactant mobility and solution viscosity stronger affect an increase in the diffusion coefficient followed by its reduction than the interparticle interaction in a micellar system dose.

引用

页码：507 / 510

页数：4

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[1] On the role of the activity coefficient in the processes of diffusion of ionic surfactants in micellar solutions
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[2] Calculation Aspects of Diffusion Coefficients in Micellar Solutions of Ionic Surfactants
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