Coulombic reactions of polyelectrolytes with counterions of different sizes

Implicit equations were derived for interactions between a charged rod polyelectrolyte model and counterions of different size. The selectivity of the polymer for the smaller of two counterions as a function of its charge density, distances of approach and annular volume was calculated. Ion binding...

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Bibliographic Details
Published in:The Journal of chemical physics 1977-03, Vol.66 (5), p.1934-1939
Main Authors: Gregor, Harry P., Gregor, John M.
Format: Article
Language:English
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Summary:Implicit equations were derived for interactions between a charged rod polyelectrolyte model and counterions of different size. The selectivity of the polymer for the smaller of two counterions as a function of its charge density, distances of approach and annular volume was calculated. Ion binding (site binding) was calculated by assigning a finite thickness to the Stern layer so as to include a finite number of closely held counterions. Further refinements included the consideration of counterion polarizability as a function of the electric field.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.434192