Two-dimensional pendant droplet tensiometry in a Langmuir monolayer

被引：12

作者：

Heinig, P ^{[1
]}

Steffen, P ^{[1
]}

Wurlitzer, S ^{[1
]}

Fischer, TM ^{[1
]}

机构：

[1] Max Planck Inst Colloids & Interfaces, D-14476 Golm, Germany

来源：

LANGMUIR | 2001年 / 17卷 / 21期

关键词：

D O I：

10.1021/la010874e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The line tension and relative surface potentials of Langmuir monolayer phases are determined in the three-phase coexisting region gas/liquid expanded /liquid condensed of methyl octadecanoate using the pendant droplet technique. The Young-Laplace equation for two-dimensional systems with long-range dipolar interactions is applied to fluorescence images of liquid expanded droplets wetting liquid condensed surfaces in thermodynamic equilibrium. The method yields the line tension of the liquid expanded/gas borderline and the ratio of the surface potentials.

引用

页码：6633 / 6637

页数：5

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