Highly conductive and stable anion exchange membranes (AEMs) are important components of high-performance anion exchange membrane fuel cells (AEMFCs). Here, we report the use of crosslinked poly(arylene ether sulfone) (PAES) AEMs containing quaternary ammonium (QA) and triazolium cations. The crosslinked PAES-triazole-hydroxide membrane (cPAES-TA-OH) had a higher ion exchange capacity (IEC) than that of the non-crosslinked membrane (PAES-TA-OH) owing to the presence of triazolium cations. The IEC values of cPAES-TA-OH and PAES-TA-OH were 1.75 and 1.31 meq/g, respectively. The IEC value affects the water uptake and swelling ratio of a membrane. The water uptake and swelling ratio of cPAES-TA-OH were higher than those of PAES-TA-OH at 30 °C and 80 °C. In addition, hydroxide conductivity and membrane stability were enhanced by crosslinking; the hydroxide conductivity of cPAES-TA-OH was 92.1 mS/cm at 80 °C under 95% RH (in contrast to 86.2 mS/cm for PAES-TA-OH), and its conductivity retention was 67% after treating with 1M NaOH at 80 °C for 24 h (in contrast to 51% for PAES-TA-OH).

高导电性和稳定的阴离子交换膜（AEM）是高性能阴离子交换膜燃料电池（AEMFC）的重要组件。在这里，我们报告使用含有季铵（QA）和三唑鎓阳离子的交联聚（亚芳基醚砜）（PAES）AEM。由于存在三唑阳离子，因此交联的PAES-三唑-氢氧化物膜（cPAES-TA-OH）具有比非交联的膜（PAES-TA-OH）更高的离子交换容量（IEC）。cPAES-TA-OH和PAES-TA-OH的IEC值分别为1.75和1.31 meq / g。IEC值会影响膜的吸水率和溶胀率。在30°C和80°C下，cPAES-TA-OH的吸水率和溶胀率高于PAES-TA-OH。另外，通过交联提高了氢氧化物的电导率和膜稳定性。