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Donnan phenomena in membranes with charge due to ion adsorption. Effects of the interaction between adsorbed charged groups

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Donnan phenomena in membranes with charge due to ion adsorption. Effects of the interaction between adsorbed charged groups

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dc.contributor.author Mafé, Salvador
dc.contributor.author Manzanares Andreu, José Antonio
dc.contributor.author Reiss, Howard
dc.date.accessioned 2010-06-18T08:01:39Z
dc.date.available 2010-06-18T08:01:39Z
dc.date.issued 1993
dc.identifier.citation MAFÉ, Salvador ; MANZANARES, José A. ; REISS, Howard. Donnan phenomena in membranes with charge due to ion adsorption. Effects of the interaction between adsorbed charged groups. En: Journal of Chemical Physics, 1993, vol. 98, no. 3 en
dc.identifier.uri http://hdl.handle.net/10550/12985
dc.description.abstract A physical model for the modified Donnan phenomenon associated with ion adsorption on localized membrane sites is presented. This model accounts for the dependence of the concentration of adsorbed ions on electrolyte concentration and pH as it is influenced by the electrostatic interaction between adsorbed ions. The equilibrium thermodynamic concepts employed are based on the Donnan formalism for the ion equilibria between membrane and solution, and the Bragg–Williams approximation for an adsorption isotherm that incorported interaction between adsorbed ions. Our results include the concentration of charged groups in the membrane, the pH of the membrane phase solution, and the Donnan potential as functions of the pH and the electrolyte concentration of the external solution for different degrees of the electrostatic interaction. These magnitudes are of considerable interest in biopolymers, membranes, and conducting polymers. en_US
dc.language.iso en en
dc.subject Donnan Theory ; Membranes ; Electric Charges ; Ions ; Adsorption ; Coupling ; Mathematical Models en
dc.title Donnan phenomena in membranes with charge due to ion adsorption. Effects of the interaction between adsorbed charged groups en
dc.type journal article es_ES
dc.subject.unesco UNESCO::FÍSICA::Química física en
dc.identifier.doi 10.1063/1.464214 en
dc.type.hasVersion VoR es_ES
dc.identifier.url http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JCPSA6000098000003002325000001&idtype=cvips&prog=normal&doi=10.1063/1.464214 en

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