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dc.contributor.authorGarcía Bernabé, Abel
dc.contributor.authorCompañ, Vicente
dc.contributor.authorBurguete, M. Isabel
dc.contributor.authorGarcia-Verdugo, Eduardo
dc.contributor.authorKarbass, Naima
dc.contributor.authorLuis, Santiago V.
dc.contributor.authorRiande, Evaristo
dc.date.accessioned2014-04-03T07:53:28Z
dc.date.available2014-04-03T07:53:28Z
dc.date.issued2010
dc.identifier.issn1932-7447
dc.identifier.urihttp://hdl.handle.net/10234/89370
dc.description.abstractSupported ionic liquid-like phases were prepared by anchoring imidazolium moieties onto highly cross-linked poly(p-chloromethylstyrene-co-divinylbenzene) monolithic matrixes. The influence of the chemical nature of the anions on the response of supported ionic liquid-like phases to electrical perturbation fields was studied by impedance spectroscopy over wide ranges of frequency and temperature. The exchange of the chloride anions (Cl−) by bis(trifluormethanesulfonyl)amide anions (NTf2−) greatly affects the psychic-chemical properties of the resulting material. The equivalent circuit that describes the impedance response of the SILLP materials used in this study to electrical perturbation fields is a resistance independent of frequency in series with a parallel Rp-CPE circuit. At high frequencies the CPE has the behavior of a capacitance. The ionic conductivity of the system increases 2 orders of magnitude by exchanging Cl− anions for NTf2−. Despite the apparent high cross-linking degree of the supporter, the systems having imidazolium units with Cl− and NTf2− as counterions apparently exhibit a glass−liquid transition in the vicinity of 343 K (70 °C) and 313 K (40 °C), respectively. Dipolar relaxations and conductive process are discussed in terms of chain mobility.ca_CA
dc.format.extent7 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherAmerican Chemical Societyca_CA
dc.rightsCopyright © 2010 American Chemical Societyca_CA
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/*
dc.sourceJournal of Physical Chemistry C, 114, 15, p. 7030–7037ca_CA
dc.subjectChemical properties
dc.subjectChlorine compounds
dc.subjectIonic liquids
dc.titleConductivity and Polarization Processes in Highly Cross-Linked Supported Ionic Liquid-Like Phasesca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1021/jp910535z
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_CA
dc.relation.publisherVersionhttp://pubs.acs.org/doi/abs/10.1021/jp910535zca_CA


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