標題: Supramolecular Functionalities Influence the Thermal Properties, Interactions and Conductivity Behavior of Poly(ethylene glycol)/LiAsF6 Blends
作者: Wang, Jui-Hsu
Cheng, Chih-Chia
Altukhov, Oleksii
Chang, Feng-Chih
Kuo, Shiao-Wei
應用化學系
Department of Applied Chemistry
關鍵字: supramolecular structure;multiple hydrogen bonding;polymer electrolytes
公開日期: 1-九月-2013
摘要: In this study, we tethered terminal uracil groups onto short-chain poly(ethylene glycol) (PEG) to form the polymers, uracil (U)-PEG and U-PEG-U. Through AC impedance measurements, we found that the conductivities of these polymers increased upon increasing the content of the lithium salt, LiAsF6, until the Li-to-PEG ratio reached 1:4, with the conductivities of the LiAsF6/U-PEG blends being greater than those of the LiAsF6/U-PEG-U blends. The ionic conductivity of the LiAsF6/U-PEG system reached as high as 7.81 x 10(-4) S/cm at 30 degrees C. Differential scanning calorimetry, wide-angle X-ray scattering, Li-7 nuclear magnetic resonance spectroscopy and Fourier transform infrared spectroscopy revealed that the presence of the uracil groups in the solid state electrolytes had a critical role in tuning the glass transition temperatures and facilitating the transfer of Li+ ions.
URI: http://dx.doi.org/10.3390/polym5030937
http://hdl.handle.net/11536/23546
ISSN: 2073-4360
DOI: 10.3390/polym5030937
期刊: POLYMERS
Volume: 5
Issue: 3
起始頁: 937
結束頁: 953
顯示於類別:期刊論文


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  1. 000330522300003.pdf