Synthesis and characterization of the conductivity and polarization processes in supported ionic liquid-like phases (SILLPs)
Impacto
Scholar |
Otros documentos de la autoría: Compañ, Vicente; Mollá, Sergio; Garcia-Verdugo, Eduardo; Luis, Santiago V.; Burguete, M. Isabel
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7053
comunitat-uji-handle3:10234/8639
comunitat-uji-handle4:
INVESTIGACIONEste recurso está restringido
http://dx.doi.org/10.1016/j.jnoncrysol.2012.02.028 |
Metadatos
Título
Synthesis and characterization of the conductivity and polarization processes in supported ionic liquid-like phases (SILLPs)Autoría
Fecha de publicación
2012Editor
ElsevierISSN
0022-3093Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S0022309312001214Palabras clave / Materias
Resumen
Different crosslinked polystyrene resins containing ionic liquid fragments covalently attached (supported ionic liquid-like phases: SILLPs) have been prepared and their conductivity has been studied by means of ... [+]
Different crosslinked polystyrene resins containing ionic liquid fragments covalently attached (supported ionic liquid-like phases: SILLPs) have been prepared and their conductivity has been studied by means of dielectric impedance spectroscopy. The main structural parameters considered in this study have been the presence of C2H bonds in the imidazolium subunits and the nature (level of hydrophobicity) of the N-substituents (methyl vs. butyl). The results obtained show that the presence of C2H fragments can have an influence on intrinsic conductivity. In the same way the role of the hydrophobicity of the N-substituents seems to play only a minor role. The main structural component associated with conductivity is the nature of the counteranion. The bulkiest, less coordinating anions, in particular the NTf2− anion, seem to be associated with the highest conductivities, with the values obtained being two orders of magnitude higher than those calculated for the same systems containing the Cl− anions for each of the temperatures under study. The results obtained rule out the participation of some given conduction mechanisms such as the involvement of carbene formation. Instead, the formation of ion-pairs of higher or lower association (strong/weak ion pairs) could be responsible for the observed behavior. [-]
Publicado en
Journal of Non-Crystalline Solids, 358, 9Derechos de acceso
© 2012 Elsevier B.V. All rights reserved.
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
Aparece en las colecciones
- QUIO_Articles [690]