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本文采用环氧乙烷与环氧丙烷共聚合成了一系列低分子量的聚醚(PEP),并用PEP的单烯丙基醚借助氢化硅烷基化反应(Hydrosilylation)制备出一种新型聚硅氧烷接枝聚醚的高分子电解质主体材料(PAEPS).分别讨论了共聚物组成、盐的种类和浓度等因素对交联PAEPS与碱金属盐络合物电解质膜离子电导的影响.结果表明,PAEPS与碱金属盐络合物的室温电导率较纯线型PEO提高两至三个数量级,电导率随温度变化关系基本上符合VTF方程,属于典型的非晶电解质行为.
In this paper, a series of low molecular weight polyethers (PEPs) were synthesized by the copolymerization of ethylene oxide and propylene oxide, and a novel polysiloxane was prepared by hydrosilylation of monoallyl ether of PEP (PAEPS) .The effects of copolymer composition, salt type and concentration on ionic conductivity of PAEPS and alkali metal salt electrolyte membrane were discussed respectively.The results showed that PAEPS Compared with the pure linear PEO, the conductivity of the complex with alkali metal salt increased by two to three orders of magnitude. The relation between the conductivity and the temperature basically accorded with the VTF equation, which belongs to the typical amorphous electrolyte behavior.