SURFACTANT AGGREGATION AND MICELLIZATION STUDIED BY INTERFACIAL-TENSION AND OPTICAL 2ND-HARMONIC GENERATION

被引：10

作者：

LEHMANN, S ^{[1
]}

BUSSE, G ^{[1
]}

KAHLWEIT, M ^{[1
]}

STOLLE, R ^{[1
]}

SIMON, F ^{[1
]}

MAROWSKY, G ^{[1
]}

机构：

[1] LASER LAB GOTTINGEN,D-37077 GOTTINGEN,GERMANY

来源：

LANGMUIR | 1995年 / 11卷 / 04期

关键词：

D O I：

10.1021/la00004a023

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The adsorption of a nonionic amphiphile at the solution/air interface has been studied by surface second-harmonic generation. The bulk phase transition of micellization was observed by monitoring the surface-reflected nonlinear signal. The concentration dependence of the second-harmonic signal could be described in terms of a Langmuir isotherm allowing the determination of the free energy of adsorption of the nonionic molecules at the surface. A comparison with experimental data obtained from surface tension measurements suggests a depth-dependent distribution of the surfactant molecules rather than a monolayer-type surface coverage.

引用

页码：1174 / 1177

页数：4

共 19 条

[1] STUDIES OF NEUTRAL AND CHARGED MOLECULES AT THE AIR WATER INTERFACE BY SURFACE 2ND HARMONIC-GENERATION - HYDROPHOBIC AND SOLVATION EFFECTS [J].