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Conductivity and Polarization Processes in Highly Cross-Linked Supported Ionic Liquid-Like Phases
dc.contributor.author | García Bernabé, Abel | |
dc.contributor.author | Compañ, Vicente | |
dc.contributor.author | Burguete, M. Isabel | |
dc.contributor.author | Garcia-Verdugo, Eduardo | |
dc.contributor.author | Karbass, Naima | |
dc.contributor.author | Luis, Santiago V. | |
dc.contributor.author | Riande, Evaristo | |
dc.date.accessioned | 2014-04-03T07:53:28Z | |
dc.date.available | 2014-04-03T07:53:28Z | |
dc.date.issued | 2010 | |
dc.identifier.issn | 1932-7447 | |
dc.identifier.uri | http://hdl.handle.net/10234/89370 | |
dc.description.abstract | Supported 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.extent | 7 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Chemical Society | ca_CA |
dc.rights | Copyright © 2010 American Chemical Society | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.source | Journal of Physical Chemistry C, 114, 15, p. 7030–7037 | ca_CA |
dc.subject | Chemical properties | |
dc.subject | Chlorine compounds | |
dc.subject | Ionic liquids | |
dc.title | Conductivity and Polarization Processes in Highly Cross-Linked Supported Ionic Liquid-Like Phases | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1021/jp910535z | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://pubs.acs.org/doi/abs/10.1021/jp910535z | ca_CA |
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