SANS structural determination of a nonionic surfactant layer adsorbed on clay particles

被引：36

作者：

Grillo, I

Levitz, P

Zemb, T

机构：

[1] CEA Saclay, Serv Chim Mol, F-91191 Gif Sur Yvette, France

[2] CNRS, CRMD, F-45071 Orleans, France

来源：

EUROPEAN PHYSICAL JOURNAL B | 1999年 / 10卷 / 01期

关键词：

D O I：

10.1007/s100510050826

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study adsorption of two nonionic surfactants (C12E5 and C12E8) On a dispersed suspension of negatively charged laponite particles. First, we quantify adsorption, i.e. the amount of adsorbed molecules per gram of dried solid. Then, we show that contrast variation experiments under controlled conditions along the adsorption isotherm of the surfactant on dispersed laponite particles allow to determine the average thickness of a nonionic surfactant layer adsorbed on a solid anisotropic particle.

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页码：29 / 34

页数：6

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