Synthesis and characterization of fluorinated and sulfonated poly(arylene ether-1,3,4-oxadiazole) derivatives and their blend membranes

被引:15
作者
Hajdok, Imre [1 ]
Bona, Aron [2 ]
Werner, Hans-Joachim [2 ]
Kerres, Jochen [1 ,3 ]
机构
[1] Univ Stuttgart, Inst Chem Proc Engn, D-70199 Stuttgart, Germany
[2] Univ Stuttgart, Inst Theoret Chem, D-70569 Stuttgart, Germany
[3] North West Univ, ZA-2520 Potchefstroom, South Africa
关键词
Poly(arylene ether-1,3,4oxadiazole); Polycondensation; Sulfonation; Blend membrane; AROMATIC POLY(1,3,4-OXADIAZOLE)S;
D O I
10.1016/j.eurpolymj.2013.12.003
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
In this study we present the synthesis and characterization of sulfonated poly(arylene ether-1,3,4-oxadiazole) derivatives. The polymers were prepared by the polycondensation reaction of bisphenol A, bisphenol S and bisphenol AF with 2,5-bis(pentafluorophenyl)-1,3,4-oxadiazole, followed by sulfonation with oleum. The polymers were characterized using elemental analysis, H-1, C-13 and F-19 NMR analysis. The obtained polyelectrolytes were blended with excess of polybenzimidazoles producing stable and flexible polymer films which showed high thermal stability and reasonable proton conductivity after doping with phosphoric acid. This study confirms that poly(arylene ether 1,3,4-oxadiazole)s are promising candidates as proton exchange membranes in intermediate- and high-temperature fuel cell applications. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:76 / 87
页数:12
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