Abstract
Three fully amorphous comb-branch polymers based on poly(styrene-co-maleic anhydride) as a backbone and poly(ethylene glycol) methyl ether of different molecular weights as side chains were synthesized. SiO2 nanoparticles of various contents and the salt LiCF3SO3 were added to these comb-branch polymers to obtain nanocomposite polymer electrolytes. The thermal and transport properties of the samples have been characterized. The maximum conductivity of 2.8×10−4 S cm−1 is obtained at 28 °C. In the system the longer side chain of the comb-branch polymer electrolyte increases in ionic conductivity after the addition of nanoparticles. To account for the role of the ceramic fillers in the nanocomposite polymer electrolyte, a model based on a fully amorphous comb-branch polymer matrix in enhancing transport properties of Li+ ions is proposed.
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This project was supported by the National Natural Science Foundation of China (no. 20075028).
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Zhao, F., Wang, M., Qi, L. et al. Properties of a nanocomposite polymer electrolyte from an amorphous comb-branch polymer and nanoparticles. J Solid State Electrochem 8, 283–289 (2004). https://doi.org/10.1007/s10008-003-0449-x
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DOI: https://doi.org/10.1007/s10008-003-0449-x