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Equilibrium swelling properties of polyampholytic hydrogels

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Equilibrium swelling properties of polyampholytic hydrogels

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dc.contributor.author	English, Anthony E.
dc.contributor.author	Mafé, Salvador
dc.contributor.author	Manzanares Andreu, José Antonio
dc.contributor.author	Yo, Xiahong
dc.contributor.author	Grosberg, Alexander Yu.
dc.contributor.author	Tanaka, Toyoichi
dc.date.accessioned	2010-07-28T11:59:36Z
dc.date.available	2010-07-28T11:59:36Z
dc.date.issued	1996
dc.identifier.citation	ENGLISH, Anthony E. ; MAFÉ, Salvador ; MANZANARES, José A. ; Xiahong Yu ; Alexander Yu. Grosberg ; Toyoichi Tanaka. Equilibrium swelling properties of polyampholytic hydrogels. En: Journal of Chemical Physics, 1996, vol. 104, no. 21	en
dc.identifier.uri	http://hdl.handle.net/10550/16714
dc.description.abstract	The role of counter ions and ion dissociation in establishing the equilibrium swelling of balanced and unbalanced polyampholytic hydrogels has been investigated experimentally and theoretically. The swelling dependence on both the net charge offset and the external bath salt concentration has been examined using an acrylamide based polyampholytic hydrogels. By careful consideration of the swelling kinetics, we illustrate the effects of ion dissociation equilibria and counter ion shielding in polyampholytic hydrogels near their balance point where both polyelectrolyte and polyampholyte effects are present. The theory considers a Flory type swelling model where the Coulombic interactions between fixed ions in the hydrogel resemble those of an ionic solid with a Debye screening factor. Theoretical predictions from this model are in qualitative agreement with our experimental results.	en_US
dc.language.iso	en	en
dc.subject	Gels ; Swelling ; Polymer Networks ; Coulomb Field ; Ionic Composition ; Screening ; Charge Density ; Equilibrium	en
dc.title	Equilibrium swelling properties of polyampholytic hydrogels	en
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::FÍSICA::Química física	en
dc.identifier.doi	10.1063/1.471560	en
dc.type.hasVersion	VoR	es_ES
dc.identifier.url	http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JCPSA6000104000021008713000001&idtype=cvips&prog=normal&doi=10.1063/1.471560	en