Anion exchange membranes (AEMs) are one of the core components of AEM fuel cells. A series of poly(vinyl alcohol)/polyquaternium‐10 (PVA/PQ‐10) AEMs with semi‐interpenetrating networks (s‐IPNs) are prepared by a simple solution‐casting method using glutaraldehyde (GA) as a cross‐linking agent. Subsequently, the prepared PVA/PQ‐10 cross‐linked membranes are characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, mechanical analysis, water uptake and swelling ratio tests, ion exchange capacity (IEC) tests, ionic conductivity measurements, and oxidative/alkaline stability tests. The effects of the mass ratio of PVA and PQ‐10 and the amount of cross‐linking agent GA on the performance of the PVA/PQ‐10 cross‐linked membranes are systematically explored. The results show that the cross‐linked PVA/PQ‐10 AEMs have high IEC and low water uptake and swelling ratio, and its maximum ionic conductivity can reach 79.37 mS cm^–1 at 80 °C. In addition, the PVA/PQ‐10 cross‐linked membrane has good oxidative and alkaline stability under optimal preparation conditions. These results may provide valuable insights toward more effective scheme designs and new, simple preparation methods for AEMs with s‐IPN structures.

中文翻译：

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带有半互穿网络的聚乙烯醇/聚季铵盐10（PVA / PQ-10）阴离子交换膜的轻松制备

阴离子交换膜（AEM）是AEM燃料电池的核心组件之一。使用戊二醛（GA）作为交联剂，通过简单的溶液浇铸方法制备了一系列具有半互穿网络（s-IPN）的聚乙烯醇/聚季铵盐（PVA / PQ-10）AEM 。随后，通过傅立叶变换红外光谱，扫描电子显微镜，热重分析，力学分析，吸水率和溶胀率测试，离子交换容量（IEC）测试，离子电导率测量，以及氧化/碱性稳定性测试。系统地研究了PVA和PQ-10的质量比和交联剂GA的量对PVA / PQ-10交联膜性能的影响。在80°C时为^–1。此外，在最佳制备条件下，PVA / PQ-10交联膜具有良好的氧化和碱稳定性。这些结果可能为采用s-IPN结构的AEM提供更有效的方案设计和新颖，简单的制备方法的宝贵见解。