SOLVENT EFFECT ON THE ADSORPTION OF 1-OCTADECANOL AT OIL-WATER INTERFACE

被引：35

作者：

IKENAGA, T ^{[1
]}

MATUBAYASI, N ^{[1
]}

ARATONO, M ^{[1
]}

MOTOMURA, K ^{[1
]}

MATUURA, R ^{[1
]}

机构：

[1] KYUSHU UNIV, FAC SCI, DEPT CHEM, FUKUOKA 812, JAPAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1980年 / 53卷 / 03期

关键词：

Adsorption at interfaces - Effect of solvents - Interface formation - Interfacial density - Mutual solubility - Oil/water interfaces - Solvent effects - Thermodynamic quantities;

D O I：

10.1246/bcsj.53.653

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In order to study the effect of solvent on the adsorption at interfaces, interfacial tension was measured as a function of temperature and compositon for the systems of water and solutions of 1-octadecanol in cyclohexane, cyclo-hexene, mesitylene, toluene, and benzene. The interfacial density of 1-octadecanol and the entropy and energy of interface formation were calculated thermodynamically. It was found that cyclohexane causes a significant adsorption of 1-octadecanol and marked decreases in the entropy and energy changes, giving rise to phase transition from expanded to condensed film, while benzene, toluene, and mesitylene cause only a slight adsorption and small decrease in thermodynamic quantities. Gyclohexene was found to give rise to an intermediate adsorptive behavior of 1-octadecanol. The results were interpreted in terms of the mutual solubility between water and solvents and that of 1-octadecanol in the solvents. © 1980 The Chemical Society of Japan.

引用

页码：653 / 657

页数：5

共 25 条

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