DROPLET CLUSTER VS BICONTINUOUS STRUCTURES IN PERCOLATING WATER-IN-OIL MICROEMULSIONS

被引：32

作者：

VOLLMER, D ^{[1
]}

VOLLMER, J ^{[1
]}

EICKE, HF ^{[1
]}

机构：

[1] UNIV BASEL,INST THEORET PHYS,CH-4056 BASEL,SWITZERLAND

来源：

EUROPHYSICS LETTERS | 1994年 / 26卷 / 05期

关键词：

D O I：

10.1209/0295-5075/26/5/012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present for the first time differential-scanning microcalorimetric measurements to investigate changes of the specific heat of a single-phase AOT(sodium di-2-ethylhexyl sulfosuccinate)/water/isooctane microemulsion. For a certain composition of the microemulsion two distinct peaks in the specific heat are observed. Peak position temperatures are close to and several degrees above the percolation temperature. We conclude that the first peak is due to the formation of a macroscopic droplet cluster (percolation threshold), whereas the second to the transition of the nanodroplet clusters to a bicontinuous structure.

引用

页码：389 / 394

页数：6

共 31 条

[1] FLUID MICROSTRUCTURE TRANSITION FROM GLOBULAR TO BICONTINUOUS IN MIDRANGE MICROEMULSION [J].