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.

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页码：2754 / 2757

页数：4

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