基于自交联杂萘联苯聚芳醚阴离子交换膜制备及其物理化学性质.pdfVIP

物理化学学报(Wuli Huaxue Xuebao) December Acta Phys. -Chim. Sin. 2013, 29 (12), 2573-2578 2573 [Article] doi: 10.3866/PKU.WHXB201310214 基于自交联杂萘联苯聚芳醚阴离子交换膜制备及其物理化学性质 刘德治 候西鑫 朱秀玲* 王 瑞 井 健 崔 悦 (大连理工大学化工与环境生命学部化工学院, 辽宁大连116024) 摘要: 以氯甲基杂环聚醚酮(CMPPEK)为原料, 加入三乙胺进行铵化, 并分别加入二乙烯三胺(DETA)和二乙 胺(DEA), 生成的仲胺基(或叔胺基)与邻近分子链氯甲基团进行自交联. 经过制膜和离子交换反应, 制备了DE- TA 自交联杂萘联苯聚芳醚阴离子交换膜(DETA-QPPEK-OH)和DEA 自交联杂萘联苯聚芳醚阴离子交换膜 (DEA-QPPEK-OH). 采用傅里叶变换红外(FTIR)光谱对制备自交联膜的化学结构进行表征. 研究了DETA-QP- PEK-OH 和DEA-QPPEK-OH 膜的理化性质, 结果表明前者具有较低吸水率和更低溶胀度. 通过研究DETA- QPPEK-OH 和DEA-QPPEK-OH 膜的离子传导率随温度的变化规律, 结果表明在80 °C 时其离子传导率分别 达到0.060 和0.028 S ∙cm-1, 表明本文制备的自交联膜具有较高离子传导率. 此外还通过热重分析(TGA)对两 类自交联膜的热稳定性进行了研究. 关键词: 聚合物阴离子交换膜; 碱性燃料电池; 杂环聚醚酮; 二乙烯三胺; 自交联; 电导率 中图分类号: O646; TQ028.8 Preparation and Physicochemical Property of Self-Crosslinked Poly(phthalazinone ether ketone) Anion-Exchange Membranes LIU De-Zhi HOU Xi-Xin ZHU Xiu-Ling* WANG Rui JING Jian CUI Yue (School of Chemical Engineering, Faculty of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, Liaoning Province, P. R. China) Abstract: Self-crosslinked poly(phthalazinone ether ketone) anion-exchange membranes (AEMs) were successfully fabricated from chloromethylated poly(phthalazinone ether ketone) (CMPPEK) by amination, membrane casting, and OH- exchange reaction steps. Triethylamine (TEA) was used as an ammonium agent, and diethylenetriamine (DETA) and diethylamine (DEA) were used as self-crosslinking agents in the quaternary reaction of CM