Influence of structural modifications near the polar head of sodium carboxylates on their aqueous solution behaviour

被引：5

作者：

Damas, C ^{[1
]}

Vannier, L ^{[1
]}

Naejus, R ^{[1
]}

Coudert, R ^{[1
]}

机构：

[1] UFR Sci & Tech, Lab PIMIR, EA 2098, F-37200 Tours, France

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1999年 / 152卷 / 1-2期

关键词：

double bond; isomerism; cryometry; vapour pressure osmometry; conductimetry; free energy of micellization;

D O I：

10.1016/S0927-7757(98)00616-5

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：

The preparation of sodium carboxylate salts containing one or two unsaturations next to the polar head is reported. The effect of unsaturations and of the Z and E isomerism on their aqueous solution properties were studied as a function of temperature, using cryometry at 0 degrees C, conductimetry at 25 degrees C and vapour pressure osmometry at 40 degrees C. The critical micelle concentrations are determined and are compared with those of their homologous saturated compounds. The free energy of micellization per double bond is determined (-3.12 kJ mol(-1)) and is less negative than the free energy of micellization per single bond (-5.2 kJ mol(-1) ). (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：183 / 187

页数：5

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