Correlation between local structure and ionic conductivity of potassium-doped siloxane poly(propyleneoxyde) ormolytes


Autoria(s): Chaker, Juliano; Dahmouche, Karim; Briois, Valérie; Santilli, Celso Valentim; Pulcinelli, Sandra Helena; Judeinstein, Patrick
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

27/05/2014

27/05/2014

01/12/2005

Resumo

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.

Formato

516-519

Identificador

http://dx.doi.org/10.1238/Physica.Topical.115a00516

Physica Scripta T, v. T115, p. 516-519, 2005.

0281-1847

http://hdl.handle.net/11449/68558

10.1238/Physica.Topical.115a00516

WOS:000204272100153

2-s2.0-42149139388

Idioma(s)

eng

Relação

Physica Scripta T

Direitos

closedAccess

Palavras-Chave #Doping (additives) #Extended X ray absorption fine structure spectroscopy #Gelation #Ionic conductivity #Precipitation (chemical) #Hydrolytic catalysts #Ormolytes #Siloxanes #Potassium
Tipo

info:eu-repo/semantics/article