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 sytem show that its structure does not differ significantly from that of the gel, but that the scattered intensity increases dramatically as the two-base region is approached. We interpret these results in terms of a layer of lutidine-rich fluid adsorbed in the silica surface and the resulting changes in concentration of the nonadsorbed fluid. © 1991 The American Physical Society.
|Data di pubblicazione:||1991|
|Titolo:||Effect of dilute silica gel on phase separation of a binary mixture|
|Rivista:||PHYSICAL REVIEW LETTERS|
|Digital Object Identifier (DOI):||10.1103/PhysRevLett.66.2754|
|Codice identificativo ISI:||WOS:A1991FN04600018|
|Codice identificativo Scopus:||2-s2.0-4043173554|
|Appare nelle tipologie:||Articolo su Rivista|