ELASTIC PROPERTIES OF INTERFACES IN A GINZBURG-LANDAU THEORY OF SWOLLEN MICELLES, DROPLET CRYSTALS AND LAMELLAR PHASES

被引：56

作者：

GOMPPER, G

ZSCHOCKE, S

机构：

[1] Sektion Physik der Ludwig-Maximilians-Universität München, München

来源：

EUROPHYSICS LETTERS | 1991年 / 16卷 / 08期

关键词：

STATISTICAL THEORIES AND LIQUID STRUCTURE; MOLECULAR LIQUIDS; ORDER-DISORDER AND STATISTICAL MECHANICS OF MODEL SYSTEMS;

D O I：

10.1209/0295-5075/16/8/005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a Ginzburg-Landau free energy for oil-water-surfactant mixtures, we show that the Helfrich Hamiltonian describes the free energy of the amphiphilic monolayers at the oil/water interface, and calculate the bending rigidity, the saddle splay modulus and the spontaneous radius of curvature. The results are used to discuss the phase diagram obtained from Landau theory, which contains a lamellar phase, a hexagonal phase of cylinders, and a droplet crystal. It is found that the interaction of the monolayers plays an important role in stabilizing the lamellar phase.

引用

页码：731 / 736

页数：6

共 21 条

[1] STRUCTURE AND PHASE-EQUILIBRIA OF MICROEMULSIONS [J].