Otro
Correlation between local structure and ionic conductivity of potassium-doped siloxane poly(propyleneoxyde) ormolytes
Registro en:
Physica Scripta T, v. T115, p. 516-519, 2005.
0281-1847
10.1238/Physica.Topical.115a00516
WOS:000204272100153
2-s2.0-42149139388
Autor
Chaker, Juliano
Dahmouche, Karim
Briois, Valérie
Santilli, Celso Valentim
Pulcinelli, Sandra Helena
Judeinstein, Patrick
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.