【摘要】 通过两步法合成了主链为聚乙烯结构,侧链为聚醚(PEG)结构的梳型单离子聚合物电解质(EVOH-g-nSPEG),用傅立叶变换红外光谱对其结构进行了表征。利用交流阻抗谱研究了其水化膜的离子电导性,讨论了侧链长度对离子电导率的影响。结果表明,离子聚合物侧链中亚乙氧基的重复单元数为2时,达到其饱和吸水率时具有最高的离子电导率为1.65×10-3S/cm。更多还原

【Abstract】 A comb-like EVOH based single ion polymer electrolyte（EVOH-g-nSPEG） was synthesized by a two-step reaction.The main chain of the comb-like polymer consists of polyethylene segments;the side chains consists of poly（ethylene glycol）（PEG） segments.The structure of EVOH-g-nSPEG was studied by FTIR.The proton conductivity of the hydrated membrane was also measured by a.c.impedance.The comb-like EVOH-g-nSPEG polymer electrolyte grafted with 2 PEG side chains provides the highest proton（conductivity）(1.65×10^-3 S/cm).更多还原