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Compression elastic modulus of neutral and protonated poly(N-vinylimidazole) hydrogels

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Polímeros y Compositeses
dc.contributor.authorValencia, Joaquín
dc.contributor.authorBaselga Llidó, Juan
dc.contributor.authorEsteban Pacios, María Isabel
dc.contributor.authorFernández de Piérola, Inés
dc.date.accessioned2017-11-16T12:49:23Z
dc.date.available2017-11-16T12:49:23Z
dc.date.issued2003-10
dc.description.abstractThe compression modulus of poly(N-vinylimidazole) (PVI) hydrogels synthesized by cross-linking polymerization in aqueous solution, was measured at room temperature in several related systems: i) just after polymerization, ii) swollen at equilibrium in deionized water, iii) swollen in HCl (aq) (pH=2.5), iv) swollen in HCl (pH=2.5) and 1 M NaCl (aq) solution and v) swollen in H2SO4 (pH=2.5) (aq) solution. Samples of the first and second groups are neutral whereas hydrogels of the other three groups are ionic because of protonation of basic imidazole groups. The experimental results were fitted with the Erman-Monnerie theory, applied to compression measurements for the first time, to determine the phantom modulus, [fₚₕ*], and the parameter κG which measures the constraining role of entanglements on the fluctuations of chains between knots.en
dc.description.sponsorshipFinancial support from DCil (Spain) under grants BQU2000-0251 and MAT2000-0391-P4-02 is gratefully acknowledged.en
dc.format.extent8
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationValencia, J., Baselga, J., E. Pacios, I. & F. Piérola, I. (2003). Compression elastic modulus of neutral and protonated poly(N-vinylimidazole) hydrogels. Macromolecular Symposia. Functional Networks and Gels, 200 (1), pp. 235-242.en
dc.identifier.doihttps://doi.org/10.1002/masy.200351024
dc.identifier.issn1521-3900
dc.identifier.publicationfirstpage235
dc.identifier.publicationissue1
dc.identifier.publicationlastpage242
dc.identifier.publicationtitleMacromolecular Symposia. Special Issue: Functional Networks and Gelsen
dc.identifier.publicationvolume200
dc.identifier.urihttps://hdl.handle.net/10016/25859
dc.identifier.uxxiAR/0000010948
dc.language.isoeng
dc.publisherWILEY-VCH Verlag GmbHen
dc.relation.projectIDGobierno de España. BQU2000-0251es
dc.relation.projectIDComunidad de Madrid. MAT2000-0391-P4-02es
dc.rights© Wiley, 2003
dc.rights.accessRightsopen access
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherCompressionen
dc.subject.otherElastic modulusen
dc.subject.otherHydrogelsen
dc.subject.otherIonic gelsen
dc.subject.otherSwellingen
dc.titleCompression elastic modulus of neutral and protonated poly(N-vinylimidazole) hydrogelsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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