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Study on perfluorinated cationic polymers and their membranes： synthesis，structure and property

Authors： LIU Xundao, CHEN Xiaohong, LI Hong, ZHANG Yongming

Units： School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240

KeyWords： perfluorinated cationic polymers, anion exchange membrane, fuel cell

ClassificationCode：O632.7

year,volume(issue):pagination： 2018,38(6):14-21

Abstract：

Design and fabrication of high alkaline stability and high ionic conductivity of anion exchange membranes are one of the frontier and hot research areas of fuel cells in recent years. A new research program is proposed, which mainly focuses on molecule synthesis to design and prepare a series of perfluorinated cationic polymers and their AEMs, including linear-quaternary-ammonium, cyclic-morpholine and imidazole-functionalized cationic polymers were successfully synthesized by incorporation of excellent stability fluorine atoms in the polymer main chain and utilization the pendant groups to attach various functional groups. The resulted AEMs displayed the high conductivity of 60.4~80.6 mS/cm at 80 ?C in water. Additionally, linear-quaternary-ammonium membrane exhibited good hydroxide conductivity of 80.6 mS/cm at 80 °C and excellent dimensional stability in water. Moreover, the membrane maintained 92.7% IEC and 93.2% hydroxide conductivity value after immersion in 8 M KOH at 80 °C over ten days and exhibits good alkaline stability.

Funds：

国家自然科学基金“高Tg高交换容量全氟磺酸聚合物的合成及膜的结构性能研究”（51573090）；国家重点研发计划“高性能合成树脂先进制备技术及应用示范”（2016YFB0302000）；含氟功能膜材料国家重点实验室开放课题基金（FM201601）。

AuthorIntro：

第一作者简介：刘训道（1986-），男，山东临沂人，博士，主要从事含氟功能膜材料的研究，E-mail：mse_liuxundao@ujn.edu.cn. *通讯作者，E-mail： lh102@sjtu.edu.cn; ymzhang@sjtu.edu.cn

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