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采取“二锅二步”的聚合方法以双酚芴、4,4’-二氯二苯砜、双酚AF型二氮杂萘酮、二氟二苯酮磺酸钠为原料制备了含芴-聚芳醚砜憎水链段和双酚AF型二氮杂萘酮-磺化聚芳醚酮亲水链段的两亲嵌段聚芳醚砜酮离聚物,通过调整4种单体的比例以及预聚合、再缩合聚合工艺制备了一系列具有不同链段尺寸的芴-双酚AF型氮杂萘酮-两亲嵌段聚芳醚砜酮离聚物质子交换膜材料.通过黏度测试、傅里叶变换红外光谱(FTIR)、氢谱(1H-NMR)、热失重(TGA)等分析方法,对离聚物的结构和性能进行了表征,用蒸发溶剂法制备了质子交换膜,并考察膜的各种性能.实验结果表明,该系列离聚物的结构可控,热稳定性良好,5 wt%热失重温度均高于250℃;由其制备的质子交换膜具有良好的耐醇性和耐甲醇渗透性能、优异的抗氧化性和水解稳定性、以及适当的质子导电率和吸水率,室温下该系列膜的甲醇渗透率在0.23×10-6～0.28×10-6cm2/s,比Nafion 117具有更好的耐甲醇渗透性能;80℃下该系列膜的质子导电率与30℃时相比呈现倍增趋势,离聚物8e膜的质子导电率在80℃下达到了1.83×10-3S/cm.
Taking the “two-pot two-step” polymerization method, bisphenol fluorene, 4,4’-dichlorodiphenyl sulfone, bisphenol AF phthalazinone and sodium difluorobenzophenone sulfonate as raw materials were prepared The amphiphilic block poly (aryl ether sulfone ketone) ionomer containing the fluorene-poly (aryl ether sulfone) hydrophobic segment and the bisphenol AF phthalazinone-sulfonated poly (aryl ether ketone) hydrophilic segment was prepared by adjusting four kinds of monomers , And a series of fluorene-bisphenol AF type a phthalazinone-amphiphilic poly (ether sulfone ketone) ionomer membrane materials with different segment sizes were prepared by prepolymerization and re-condensation polymerization process.Through the viscosity test, The structure and properties of the ionomer were characterized by Fourier transform infrared spectroscopy (FTIR), 1H-NMR and TGA. The proton exchange membrane was prepared by evaporation solvent method. The properties of the membranes were investigated.The experimental results show that the ionomers of this series have a controlled structure, good thermal stability and a high temperature loss of 5 wt% above 250 ℃. The proton exchange membrane Sex and resistance to methanol permeation, excellent oxidation resistance and hydrolytic stability, and the appropriate proton conductivity and water absorption, at room temperature, a series of membrane A The alcohol permeability of the membranes was better than that of Nafion 117 in the range of 0.23 × 10-6 ~ 0.28 × 10-6cm2 / s. The proton conductivity of the membranes at 80 ℃ showed a doubling tendency compared with that at 30 ℃, Proton conductivity of the ionomer 8e film reached 1.83 × 10 -3 S / cm at 80 ° C.