Bulk and Interfacial Wetting Behavior of Binary Mixtures Induced by Associating between Unlike-Pair Molecules
Resource
The Journal of Physical Chemistry B 110: 3294-3301
Journal
The Journal of
Journal Volume
110
Journal Issue
7
Pages
3294-3301
Date Issued
2006
Date
2006
Author(s)
Abstract
The statistical associating fluid theory of Wertheim is applied to describe binary mixtures with associating between unlike-pair molecules. The phase behavior of this binary mixture would fall into five different types (I, II, III, V, and VI) of the classification scheme of van Konynenburg and Scott by varying the associating strength and the energy parameters. Both interfacial wetting behavior and wetting transitions are carefully examined in all the vapor-liquid-liquid (gamma-beta-alpha) three-phase-coexisting regions of the binary mixtures. The global wetting behavior and wetting transitions are delineated by scanning the parameter space. In certain regions, the middle beta phase exhibits interfacial phase transitions sequentially, nonwetting --> partial-wetting --> nonwetting, at the interface separating lower alpha and upper gamma phases along with increasing temperature.
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journal article
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