Synthesis and characterization of fluorinated and sulfonated poly(arylene ether-1,3,4-oxadiazole) derivatives and their blend membranes
Date
2014Author
Hajdok, Imre
Kerres, Jochen
Bona, Aron
Werner, Hans-Joachim
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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, 1H, 13C and 19F 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
URI
http://hdl.handle.net/10394/15915https://www.sciencedirect.com/science/article/pii/S0014305713005776
https://doi.org/10.1016/j.eurpolymj.2013.12.003