含氨基聚芳醚酮/磺化聚芳醚酮砜中高温质子交换复合膜的制备与性能研究  

PREPARATION AND PROPERTIES OF AMINO-CONTAINING POLY(ARYLE ETHER KETONE)/POLY(ARYLE ETHER KETONE SULFONE) MIDDLE-HIGH TEMPERATURE COMPOSITE PROTON EXCHANGE MEMBRANE

作　　者：王哲[1] 隋秀鹏[1] 倪宏哲[1] 任春丽[1] 程海龙[1] 白洪伟[1] 徐晶美[1] 张会轩[1] 

机构地区：[1]长春工业大学化学工程学院长春工业大学合成树脂与特种纤维工程研究中心,长春130012

出　　处：《高分子学报》2012年第9期972-979,共8页Acta Polymerica Sinica

基　　金：吉林省教育厅重点项目(项目号2008097)资助

摘　　要：以自制的高磺化度磺化聚芳醚酮砜(SPAEKS)和含有氨基的聚芳醚酮(Am-PAEK)为原料,通过共溶剂涂膜法制备了不同重量比例的Am-PAEK/SPAEKS复合膜.通过高温(160℃)处理使氨基和磺酸基团在复合膜内形成交联,制得交联型复合膜.复合膜的热性能、尺寸稳定性、阻醇性能有所提高,而且交联型复合膜中的Am-PAEK/SPAEKS-C-3质子传导率在120℃时达到了0.0892 S/cm,高于在相同测试条件下SPAEKS膜的0.0654 S/cm和Nafion膜的0.062 S/cm,而其甲醇渗透系数在25℃时达到0.14×10-6cm2/s,低于SPAEKS膜的0.85×10-6cm2/s和Nafion膜的2×10-6cm2/s.实验结果表明,Am-PAEK/SPAEKS交联型复合膜有望在中高温质子交换膜燃料电池中得到应用.In order to meet the requirements of middle-high temperature proton exchange membrane full cells,different weight ratio（Am-PAEK/SPAEKS） composite membranes are prepared by solution casting of the high degree sulfonated poly（aryle ether ketone sulfone）（SPAEKS） and poly（aryle ether ketone） with amino groups（Am-PAEK） as raw material.Cross-linked composite membranes are obtained by a heating reaction at 160℃.The cross-linked structure is formed in the membrane by acid-base cross-linking reaction between amino and sulfonic acid groups.The composite membranes show good thermal stability,dimensional stability and methanol permeability.The Am-PAEK/SPAEKS-C-3 membrane exhibits excellent proton conductivity up to 0.0892 S/cm at 120℃,which is superior to that of Nafion membrane（0.062 S/cm） and SPAEKS membrane（0.0654 S/cm） under the same test conditions.The water diffusion coefficient of the Am-PAEK/SPAEKS-C-3 membrane reaches 3.51×10-9 cm^2/s that is lower than that of SPAEKS membrane（8.96×10-8 cm^2/s）.The methanol diffusion coefficient（0.14×10^-6 cm^2/s） of Am-PAEK/SPAEKS-C-3 membrane is lower than that of pure SPAEKS membranes（0.85×10^-6 cm^2/s） and the Nafionmembrane（2×10^-6cm^2/s）.Experimental data confirm that Am-PAEK/SPAEKS-C-3 membrane has high proton conductivity and low methanol diffusion coefficient in middle-high temperatures.All the results indicate that Am-PAEK/SPAEKS-C-3 crosslinked composite membrane may be a potential material for middle-high temperature proton exchange membrane fuel cells applications.

关 键 词：磺化聚芳醚酮砜 含氨基聚芳醚酮 复合膜 

分 类 号：TM911.4[电气工程—电力电子与电力传动]