Poly( arylene ether ketone) carring multi-sulfonated side chain was prepared via graft polymerization reaction. The obtained soluble sulfonated polymer SP- Ⅰ and SP- Ⅱ have high viscosity ( ηinh ＞ 1. 72 dL/g). The transparence and tough sulfonated polymer film was obtained by solution casting method and exhibited good thermochemical stability, high proton conductivity( ＞0.90 S/cm) and good dimensional stability.%@@ 质子交换膜燃料电池(PEMFC)是一种高效、低污染的发电装置.与其它类型的燃料电池相比,具有比功率高、操作温度低、耐腐蚀性好和寿命长等优点.质子交换膜(PEM)的性能对燃料电池的性能起关键作用[1].目前商业化的PEM膜材料仍然是全氟磺酸材料(如Nation)[2],虽然其具有较好的稳定性和较高的质子传导率,但成本高,在低湿度或高温时的质子传导性较差,存在较高的甲醇渗透性等[3],阻碍了燃料电池的广泛应用.因此开发新的质子交换膜材料一直为人们所关注.侧链型磺化聚芳醚具有类似于Nation的梳型结构,由于磺酸基团远离主连,所以在平衡质子传导率和尺寸稳定性方面优于主链型磺化聚芳醚材料[4],因此侧链型磺化聚芳醚材料成为近期研究的热点[5～10].
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