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dc.contributor.authorSanchis, M. J.-
dc.contributor.authorOrtiz-Serna, P.-
dc.contributor.authorCarsí, M.-
dc.contributor.authorDíaz-Calleja, Ricardo-
dc.contributor.authorRiande, Evaristo-
dc.contributor.authorGargallo, L.-
dc.contributor.authorRadic, D.-
dc.identifier.citationJournal of Physical Chemistry B 115 : 5730–5740 (2011)es_ES
dc.description.abstractThe objective of this work was to study the influence of small variations in the chemical structure on the molecular dynamics of liquids using as models bis(cyclohexylmethyl) 2-methyl- and dicyclohexyl 2-methylsuccinate. The dielectric behavior of the low molecular weight liquids was studied over a wide range of frequencies and temperatures. The results show that the temperature dependence of the dielectric strengths, relaxation times, and shape parameters of the secondary and glass liquid relaxations are very sensitive to the slight differences in the structures of the liquids. Significant changes take place in the dielectric strength of the β relaxation in the glass liquid transition. Moreover, the temperature dependence of the β relaxation exhibits Arrhenius behavior in the glassy state and departs from this behavior in the liquid state. Special attention is paid to the temperature dependence of low-frequency relaxations produced by the motion of a macrodipole arising from charges located near the liquid electrode boundaries.es_ES
dc.description.sponsorshipThis work was financially supported by the Dirección General de Ciencia y Tecnología through Grant MAT2008-06725-C03 and by Generalitat Valenciana through Grant ACOMP/2010/ 204. D.R. and L.G. thank Fondecyt (Grants 1080007 and 1080026) for partial financial help. R.D.-C. thanks the Universitat Politécnica de Valencia (Grant PAID-05-08) for partial financial helpes_ES
dc.publisherAmerican Chemical Societyes_ES
dc.titleContributions of Dipolar Relaxation Processes and Ionic Transport to the Response of Liquids to Electrical Perturbation Fieldses_ES
dc.description.peerreviewedPeer reviewedes_ES
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