Publicação
Short-chain di-ureasil ormolytes doped with potassium triflate: Phase diagram and conductivity behavior
| 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 x 10-6Scm-1. |
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| Autores principais: | Zea Bermudez, V. de |
| Outros Autores: | Correia, M. Gomes; Silva, Maria Manuela; Barros, Sandra Cerqueira; Smith, Michael John; Ferreira, R. A. Sá; Carlos, L. D.; Molina, C.; Ribeiro, A. J. L. |
| Assunto: | Di-ureasils Phase diagram Ionic conductivity Thermal analysis potassium triflate |
| Ano: | 2003 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| 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 x 10-6Scm-1. |
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