STUDIES ON THE SURFACE AND THERMODYNAMIC PROPERTIES OF SOME SURFACTANTS IN AQUEOUS AND WATER+1,4-DIOXANE SOLUTIONS

被引：83

作者：

ANAND, K ^{[1
]}

YADAV, OP ^{[1
]}

SINGH, PP ^{[1
]}

机构：

[1] MAHARSHI DAYANAND UNIV,DEPT CHEM,ROHTAK 124001,INDIA

来源：

COLLOIDS AND SURFACES | 1991年 / 55卷

关键词：

D O I：

10.1016/0166-6622(91)80104-V

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：

From surface tension data surface properties, such as, surface excess concentration, minimum area per molecule, surface pressure at the c.m.c., as well as thermodynamic quantities of micellization and adsorption, have been determined for four different surfactants, viz., sodium dodecyl sulphate (SDS), sodium dodecylbenzene sulphonate (SDBS), dodecyltrimethylammonium bromide (DTAB) and Triton X-100. The measurements for each system has been carried out at 303.15 and 313.5 K in aqueous and water + 1,4-dioxane solutions. The results indicate that the micellization and adsorption at the liquid/air interface of these surfactants are governed, primarily, by the entropy gain rather than the energy effect. Whereas micellization of SDS is favoured in the presence of 1,4-dioxane, it is not favoured in the presence of DTAB and Triton X-100.

引用

页码：345 / 358

页数：14

共 18 条

[1] PREDICTION OF MICELLAR MOLECULAR-WEIGHTS AND THERMODYNAMICS OF MICELLIZATION OF MIXTURES OF ALKYLTRIMETHYLAMMONIUM SALTS [J].