CALCULATIONS OF ELECTRIC DOUBLE-LAYER FORCE AND INTERACTION FREE-ENERGY BETWEEN DISSIMILAR SURFACES

Citation
D. Mccormack et al., CALCULATIONS OF ELECTRIC DOUBLE-LAYER FORCE AND INTERACTION FREE-ENERGY BETWEEN DISSIMILAR SURFACES, Journal of colloid and interface science, 169(1), 1995, pp. 177-196
Citations number
29
Categorie Soggetti
Chemistry Physical
ISSN journal
00219797
Volume
169
Issue
1
Year of publication
1995
Pages
177 - 196
Database
ISI
SICI code
0021-9797(1995)169:1<177:COEDFA>2.0.ZU;2-C
Abstract
The nonlinear Poisson-Boltzmann theory is used to calculate the electr ical double-layer force and interaction free energy between dissimilar ly charged surfaces. For symmetric electrolytes, in addition to cases in which both surfaces maintain constant surface potential or constant surface charge during interaction, we also consider cases in which on e surface maintains constant surface potential and the other maintains constant surface charge. We further present a general algorithm for c alculating the double layer force and interaction free energy between surfaces with ionizable surface groups across electrolytes of any vale nce or composition. These results suggest interesting features of the double-layer interaction that can be observed by direct force measurem ent techniques. (C) 1995 Academic Press, Inc.