芴-氮杂萘酮-聚芳醚酮离聚物的合成与性能

Synthesis and Properties of Sulfonated Poly(phthalazinone ether ketone) Ionomers Containing Poly(fluorene ether ketone) Hydrophobic Moieties

以双酚芴、双酚A型二氮杂萘酮、二氟二苯酮和二氟二苯酮磺酸钠为原料,通过调整4种单体的比例以及加料顺序控制缩聚反应,制备了一系列具有不同离子交换容量的含芴和二氮杂萘酮联苯单元的嵌段聚芳醚酮,简称芴-氮杂萘酮-聚芳醚酮离聚物.采用黏度测试、傅里叶衰减全反射红外光谱(FTIR-ATR)、氢谱(1HNMR)和热失重(TGA)等分析方法,对不同结构的芴-氮杂萘酮-聚芳醚酮离聚物的分子量、结构及热稳定性进行了表征.实验结果表明,采用控制缩聚法能够制备出不同离子交换容量的高分子量芴-氮杂萘酮-聚芳醚酮离聚物,该系列离聚物具有良好的热稳定性.对该系列离聚物膜进行了抗氧化性、水解稳定性、吸水率、耐醇性、离子交换容量和质子传导率测试.测试结果表明,该系列离聚物具有良好的抗氧化性、水解稳定性、耐醇性、质子传导率和适当的吸水率.

A series of sulfonated poly（phthalazinone ether ketone） ionomers containing poly（fluorene ether ketone） hydrophobic moieties as the polymer electrolytes for fuel cell appliaction were synthesized.To obtain multiblock poly（phthalazinone ether ketone） ionomers,one-pot two step nucleophilic polycondensation was run.Ionomers with various IEC were synthesized by adjusting the molar ratios and feeding sequence of fluorene bisphenol,bisphthalazinone monomer,sulfonated difluoro benzophenone,and difluoro benzophenone.The so-made polymers have high molecular mass,good thermal stabilities,oxidation resistance and hydrolysis resistance,moderate water-uptakes.They demonstrate good alcohol resistance at refluxing temperature and proton conductivity and can be potentially used as proton exchange membranes for fuel cells.