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
收藏
页码：653 / 657
页数：5
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