Surface and colloid properties of cyclic amides II. phase separation, surface activity and micellization in mixtures of N-hexyl-2-pyrrolidone and water

被引：7

作者：

Lou, AJ ^{[1
]}

Pethica, BA ^{[1
]}

Somasundaran, P ^{[1
]}

机构：

[1] Columbia Univ, Langmuir Ctr Colloids & Interfaces, New York, NY 10027 USA

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1997年 / 129卷

基金：

美国国家科学基金会;

关键词：

N-hexyl-2-pyrrolidone; phase separation; micellization;

D O I：

10.1016/S0927-7757(97)00046-0

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：

N-hexyl-2-pyrrolidone (HP) and water are partially miscible above a lower consolute temperature (LCT) of 19.1 degrees C. The interfacial tension of the two phase system was measured as a function of temperature. HP is surface active at the air/solution interface and forms micelles in solution at all temperatures from the freezing point up to the LCT and up to 25 degrees C in the water-rich phase above the LCT. At low water contents, water is positively adsorbed at the air/solution interface. (C) 1997 Elsevier Science B.V.

引用

页码：297 / 303

页数：7

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