Synthesis, multinuclear NMR characterization and dynamic property of organic-inorganic hybrid electrolyte membrane based on alkoxysilane and poly(oxyalkylene) diamine

Diganta Saikia, Yu Chi Pan, Hsien Ming Kao

研究成果: 雜誌貢獻期刊論文同行評審

12 引文 斯高帕斯(Scopus)

摘要

Organic-inorganic hybrid electrolyte membranes based on poly(propylene glycol)-block-poly(ethylene glycol)-block-poly(propylene glycol) bis(2-aminopropyl ether) complexed with LiClO4 via the co-condensation of tetraethoxysilane (TEOS) and 3-(triethoxysilyl)propyl isocyanate have been prepared and characterized. A variety of techniques such as differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, alternating current (AC) impedance and solid-state nuclear magnetic resonance (NMR) spectroscopy are performed to elucidate the relationship between the structural and dynamic properties of the hybrid electrolyte and the ion mobility. A VTF (Vogel-Tamman-Fulcher)-like temperature dependence of ionic conductivity is observed for all the compositions studied, implying that the diffusion of charge carriers is assisted by the segmental motions of the polymer chains. A maximum ionic conductivity value of 5.3 × 10-5 Scm-1 is obtained at 30 °C. Solid-state NMR results provide a microscopic view of the effects of salt concentrations on the dynamic behavior of the polymer chains.

原文???core.languages.en_GB???
頁(從 - 到)253-274
頁數22
期刊Membranes
2
發行號2
DOIs
出版狀態已出版 - 2012

指紋

深入研究「Synthesis, multinuclear NMR characterization and dynamic property of organic-inorganic hybrid electrolyte membrane based on alkoxysilane and poly(oxyalkylene) diamine」主題。共同形成了獨特的指紋。

引用此