中文摘要：

质子交换膜是聚合物电解质膜燃料电池和直接甲醇燃料电池的关键部件，研制可以取代Nation的非全氟磺酸型质子交换膜是该领域最为重要的研究方向之一．目前常采用将磺酸基、磷酸基和羧酸基等引入到芳族聚合物的方法来制备新型质子交换膜．由于磺化聚合物膜的质子传导能力较高，

英文摘要：

A bromine-containing poly（arylene ether sulfone） was synthesized from a（4-bromo）phenylhydroquinone monomer.A phosphonated derivative was prepared based on above brominated polymer using palladium-catalyst.Aimed at improving the properties for fuel cell applications,a composite membrane was obtained by incorporating sulfonic acid-functionalized polysilsesquioxane into the phosphonated polymer through a sol-gel processing.Both phosphonated membrane and its hybrid membranes show good thermal and dimensio-nal stability.The hybrid membrane has low methanol permeability of 1.07×10-7 cm2/s and proton conducti-vity of 0.06 S/cm at 80 ℃.