Calorimetric investigations of gemini and conventional cationic surfactants at two silica-solution interfaces

被引：5
|
作者：
Grosmaire, L [1 ]
Chorro, M [1 ]
Chorro, C [1 ]
Partyka, S [1 ]
Boyer, B [1 ]
机构：
[1] Univ Montpellier 2, Lab Agregats Mol & Mat Inorgan, F-34095 Montpellier 5, France
来源：
THERMOCHIMICA ACTA | 2001年 / 379卷 / 1-2期
关键词：
calorimetry; adsorption; cationic gemini surfactant; silica;
D O I：
10.1016/S0040-6031(01)00624-4
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The importance of calorimetric methods in the study of colloidal phenomena is illustrated here by analysis of the enthalpies of adsorption, at 35 degreesC, of two gemini and conventional cationic surfactants (12-2-12 and DTAB, respectively) on the surfaces of two silicas with different chemical properties. The values of the differential molar enthalpies of adsorption, corrected for the contribution of the dilution of the surfactant in solution, allow precise description of the adsorption process of the surfactants at the solid-solution interface. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码：261 / 268
页数：8
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