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Citation: ZHU Wei-Hua, YANG Bing, WANG Xin-Ling, TANG Xiao-Zhen, WANG Yan-Song. Ionic Conductive Property and Infrared Spectroscopy Characterization of Polyurethane Based Solid Electrolytes[J]. Chinese Journal of Applied Chemistry, ;2001, 18(12): 939-943. shu

Ionic Conductive Property and Infrared Spectroscopy Characterization of Polyurethane Based Solid Electrolytes

1.
a School of Chemistry and Chemical Technology, Shanghai Jiaotong University, Shanghai 200240;
2.
b Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai

Received Date: 7 March 2001
Available Online: 17 September 2001
Fund Project: 国家自然科学基金资助项目(59903004) (59903004)

The linear poly(ether urethane)(PEG-PU) was synthesized by solution polymerization and a series of solid polymer electrolytes based on the complexes of poly(ether urethane) with sodium perchlorate (NaClO₄) were prepared. Fourier transform-Infrared spectroscopy (FT-IR), Fourier transform-Raman spectroscopy(FT-Raman) and complex impedance analysis were used to investigate the polymer-ion interaction and ionic conductive property of the products. The results showed that the oxygen atoms of the carbonyl and ether oxygen groups have different coordination abilities for sodium cation. Both carbonyl and ether oxygen group participate in the ionic transport process in PU-based electrolytes. The ionic conductivity of the complex membrane increases with the increase of temperature. In a certain range of temperature (25~100℃), ionic conductivity of PEG-PU/NaClO₄ complex membrane follows the Arrhenius equation. It has been also found that, when the mole ratio of the ether oxygen to sodium cation is about 12, the PEG-PU/NaClO₄ complex exhibits a maximum ionic conductivity.
- poly(ether urethane),
- solid polymer electrolyte,
- coordination,
- ionic conductivity
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