可在90℃工作的自交联碱性聚合物电解质膜的制备及表征  

Synthesis and characterization of self-crosslinked alkaline polymer electrolytes operable at 90 °C

作　　者：潘婧[1] 谭力盛[1] 庄林[1] 陆君涛[1] 

机构地区：[1]湖北省电源材料重点实验室,武汉大学化学与分子科学学院,武汉430072

出　　处：《中国科学：化学》2011年第12期1848-1856,共9页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(20933004);国家高技术研究发展计划(863计划,2007AA05Z142);中央高校基础研究基金(203275662,203275672)的资助

摘　　要：报道了一种具有短程自交联结构的碱性聚合物电解质.由于聚合物的交联仅发生在成膜过程且不需要外加交联剂,因此既可获得稳定的聚合物溶液供电化学器件制作使用,又可获得具有优异耐高温抗溶胀性能的交联型聚合物膜.此碱性聚合物电解质膜在室温纯水中电导率超过20mScm-1,在90℃热水中电导率达到63mScm-1且经过1000h后仅下降4%.在90℃水中膜溶胀率仅3%且具有良好的机械性能.The full synthesis and detailed characterization of a self-crosslinked alkaline polymer electrolyte（APE） is reported by this paper.Since the crosslinking process can take place without crosslinker,this novel material could exist either as a stable polymer solution facilitating the assembly of electrochemical devices or as a crosslinked polymer membrane exhibiting exceptional anti-swelling properties at elevated temperature.The ionic conductivity of the self-crosslinked APE is greater than 20 mS cm^-1 in water at ambient temperature and reaches 63 mS cm^-1 at 90 °C,and declines only 4% after 1000 h.The membrane in 90 °C water is of good mechanical strength and swells only 3%.

关 键 词：碱性聚合物电解质 自交联 耐高温 抗溶胀 

分 类 号：TB383.2[一般工业技术—材料科学与工程]