Abstract A novel series of blended polymer electrolyte membranes (PEMs) from crosslinked sulfonated poly(arylene ether) (cSPAE100) and triazole-containing poly(arylene ether sulfone) (PAES-DTM) were prepared for fuel cell applications. cSPAE100 with a high degree of sulfonation was synthesized via aromatic condensation. PAES-DTM densely functionalized with di-triazole moieties was blended with cSPAE100. The blend ratios of the fabricated PEMs varied from 2 wt% to 10 wt%, and the blend PEMs (cSPAE-DTMs) displayed sufficiently high ion exchange capacities (IEC = 2.07–1.86 mequiv/g). Introducing the triazole moieties, the proton conductivities of cSPAE-DTM2 and cSPAE-DTM5 increased at high relative humidity (95% RH), whereas their IEC values decreased. Furthermore, evaluation of the cell performance at 80 °C revealed that the performance of the cSPAE-DTMs was superior to that of the pristine membrane under 50% RH. For practical application in fuel cells, the thermal, chemical and mechanical properties of all membranes were investigated.

中文翻译：

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用高度磺化的聚（亚芳基醚）和带有致密三唑的聚（亚芳基醚砜）混合质子交换膜的简便制备

摘要 由交联磺化聚亚芳基醚 (cSPAE100) 和含三唑的聚亚芳基醚砜 (PAES-DTM) 制备了一系列用于燃料电池的新型混合聚合物电解质膜 (PEM)。通过芳烃缩合合成了高度磺化的 cSPAE100。用双三唑部分密集官能化的 PAES-DTM 与 cSPAE100 混合。制造的 PEM 的混合比例从 2 wt% 到 10 wt% 不等，混合 PEM（cSPAE-DTM）显示出足够高的离子交换容量（IEC = 2.07-1.86 mequiv/g）。引入三唑部分后，cSPAE-DTM2 和 cSPAE-DTM5 的质子电导率在高相对湿度 (95% RH) 下增加，而它们的 IEC 值降低。此外，在 80°C 下对电池性能的评估表明，在 50% RH 下，cSPAE-DTM 的性能优于原始膜的性能。为了在燃料电池中的实际应用，研究了所有膜的热、化学和机械性能。