EFFECT OF DILUTE SILICA-GEL ON PHASE-SEPARATION OF A BINARY MIXTURE

被引：52
|
作者：
FRISKEN, BJ
FERRI, F
CANNELL, DS
机构：
[1] Department of Physics, University of California, Santa Barbara
来源：
PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 21期
关键词：
D O I：
10.1103/PhysRevLett.66.2754
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the results of an experimental study of the effect of a dilute silica network on critical phenomena in a binary mixture of 2.6-lutidine and water. Light-scattering measurements of this system show that its structure does not differ significantly from that of the gel, but that the scattered intensity increases dramatically as the two-phase region is approached. We interpret these results in terms of a layer of lutidine-rich fluid adsorbed on the silica surface and the resulting changes in concentration of the nonadsorbed fluid.
引用
收藏
页码：2754 / 2757
页数：4
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