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合成了一种含酯基的磺化聚合物,利用后水解的方法得到了含有羧基侧基的聚合物;将磺化聚合物与聚乙烯醇通过溶液共混,热处理后得到交联型的共混膜材料.研究结果表明,膜材料的玻璃化转变温度(Tg)有明显的上升,证明了交联反应的发生;同时,膜的吸水率和溶胀率有一定的下降,力学性能和热稳定性也有一定的提升.通过共价交联的方法,制备了综合性能优异的磺化聚芳醚质子交换膜材料.在100℃,交联膜的质子传导率为0.072 ~0.065 S/cm,吸水率为51% ~89%,溶胀率为19%~ 30%.

参考文献

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