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Preparation and performance of crosslinked poly(arylene ether)s-based anion exchange membranes

Authors： WANG Xiuqin, LIN Chenxiao, ZHANG Qiugen, ZHU Aimei, LIU Qinglin

Units： The College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005

KeyWords： olefin metathesis; crosslinking; anion exchange membranes; fuel cells

ClassificationCode：O632.7

year,volume(issue):pagination： 2018,38(2):1-8

Abstract：

Fuel cells are regarded as one of the most perspective energy conversion devices due to its high efficiency and low pollution. As a critical component of fuel cells, anion exchange membranes (AEMs) still meet the dilemma of low conductivity and high swelling ratio. Herein, crosslinked poly(arylene ether)s-based anion exchange membranes (AEMs) were prepared via olefin metathesis using Grubbs II catalyst and crosslinking under thermal treatment. The as-prepared AEMs exhibit obvious microphase separated morphology since the hydrophilic side chain is immiscible with hydrophobic poly(arylene ether)s backbone. Finally, the crosslinked AEMs demonstrate a highest conductivity of 81.1 mS·cm-1 at 80 oC. The crosslinked structure is effective at enhancing the dimensional stability of the membranes. C-FPAE-PH-1.5 shows a low swelling ratio of 7.51% at 30 oC. Furthermore, the crosslinked AEMs show robust alkaline stability. C-FPAE-PH-1.5 remained 93.1% of its original conductivity after immersing into a 1 M aqueous KOH solution at 60 oC for 360 h.

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AuthorIntro：

作者简介：王秀琴(1993-)，女，浙江温州人，在读硕士研究生，主要从事功能膜材料的制备，E-mail：xiu-qin.wang@foxmail.com。通讯作者E-mail：qlliu@xmu.edu.cn。国家自然科学基金(21576226)资助。

Reference：

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