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Solid Polymer Electrolytes Based on Copolymers of Cyclic Carbonate Acrylate and n‐Butylacrylate
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2020-02-24 , DOI: 10.1002/macp.201900556
Fadoi Boujioui 1 , Helen Damerow 1 , Flanco Zhuge 1 , Jean‐François Gohy 1
Affiliation  

Solid polymer electrolytes (SPEs) are prepared by mixing poly(2‐oxo‐1,3‐dioxolan‐4‐yl)methyl acrylate‐randomn‐butylacrylate) [P(cyCA‐rnBA)] statistical copolymers with bis(trifluoromethane)sulfonimide lithium salt. The P(cyCA‐rnBA) copolymers are synthesized by reversible addition‐fragmentation chain transfer polymerization and different molar masses as well as copolymer composition are targeted in order to study the influence of the molecular parameters on the thermal, mechanical, and electrochemical properties of the SPEs obtained after mixing the copolymers with lithium salts. In the investigated experimental window, it is shown that the thermal and mechanical properties of the SPEs mainly depend on the composition of the copolymer and are poorly influenced by the molar mass. In sharp contrast, the ionic conductivities are more deeply influenced by the molar mass than by the composition of the copolymers. In this respect ionic conductivity values ranging from 4.2 × 10−6 S cm−1 for the lower molar mass sample to 8 × 10−8 S cm−1 for the higher molar mass one are measured at room temperature for the investigated SPEs.

中文翻译:

基于丙烯酸环丁酯和丙烯酸正丁酯共聚物的固体聚合物电解质

固体聚合物电解质(SPE)是通过将聚(2-氧代-1,3-二氧杂戊-4-基)丙烯酸甲酯-无规-丙烯酸丁酯[P(cyCA- r - n BA)]统计共聚物与双(三氟甲烷)磺酰亚胺锂盐。P(cyCA‐ rnBA)共聚物是通过可逆的加成-断裂链转移聚合反应合成的,目标是不同的摩尔质量和共聚物组成,以研究分子参数对SPE混合后获得的SPE的热,机械和电化学性能的影响。锂盐的共聚物。在研究的实验窗口中,表明SPE的热和机械性能主要取决于共聚物的组成,而摩尔质量的影响很小。形成鲜明对比的是,摩尔电导率比共聚物的组成对离子电导率的影响更大。在这方面,离子电导率值范围为4.2×10 -6 S cm -1对于较低摩尔质量的样品,在室温下对于所研究的SPE,测量到对于较高摩尔质量的样品为8×10 -8 S cm -1
更新日期:2020-02-24
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