Short-chain di-ureasil ormolytes doped with potassium triflate: Phase diagram and conductivity behavior
Nenhuma Miniatura disponível
Data
2003-01-01
Autores
De Zea Bermudez, V.
Gomes Correia, S. M.
Silva, M. M.
Barros, S.
Smith, M. J.
Sá Ferreira, R. A.
Carlos, L. D.
Molina, C. [UNESP]
Ribeiro, Sidney José Lima [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
Di-urea cross-linked poly(oxyethylene)/siloxane hybrids, synthesized by the sol-gel process and containing a wide concentration range of potassium triflate, KCF3SO3, have been analyzed by x-ray diffraction and differential scanning calorimetry. The pseudo-phase diagram proposed has been taken into account in the interpretation of the complex impedance measurements. The xerogels prepared are obtained as transparent, thin monoliths. At room temperature the highest conductivity found was 2 × 10-6 Ω-1 cm-1.
Descrição
Palavras-chave
Di-ureasils, Ionic conductivity, Phase diagram, Potassium triflate, Crosslinking, Differential scanning calorimetry, Doping (additives), Ionic conduction, Phase diagrams, Polyethylene glycols, Potassium compounds, X ray diffraction analysis, Ormolytes, Sol-gels
Como citar
Journal of Sol-Gel Science and Technology, v. 26, n. 1-3, p. 375-381, 2003.