Artículos de revistas
Correlation between local structure and ionic conductivity of potassium-doped siloxane poly(propyleneoxyde) ormolytes
Fecha
2005-12-01Registro en:
Physica Scripta T, v. T115, p. 516-519, 2005.
0281-1847
10.1238/Physica.Topical.115a00516
WOS:000204272100153
2-s2.0-42149139388
5584298681870865
9971202585286967
0000-0002-8356-8093
Autor
Universidade Estadual Paulista (Unesp)
Centre Universitaire Paris-Sud
Institución
Resumen
The local order around K for K(CF3SO3) doped Siloxane-Poly(propyleneoxide) hybrids at different doping concentration was investigated by x-ray absorption spectroscopy (EXAFS and XANES) at the potassium K-edge. The results indicate that the use of HCl as hydrolytic catalyst for gelation induces the precipitation of KCl. The ionic conductivity is strongly related to the presence of oxygen atoms as first neighbours around potassium and to the amount of KCl precipitate. © Physica Scripta 2005.