[International Journal of Hydrogen Energy]Construction of ion transport channels by grafting flexible alkyl imidazolium chain into functional poly(arylene ether ketone sulfone) as anion exchange membranes
作者：Jingmei Xu, Bingxin Liu, Xueyan Luo, Minghui Li, Huan Zang, Huixuan Zhang, Zhe Wang
關鍵字：Imidazolium,Amino group,Anion exchange membrane,Poly (arylene ether ketone sulfone),Alkaline stability
論文來源：期刊
具體來源：International Journal of Hydrogen Energy
發表時間：2017年
A new series of imidazolium-functionalized anion exchange membranes (AEMs), based on poly (arylene ether ketone sulfone) containing pendant amino groups(Am-PAEKS) have been prepared. The structure of the copolymers is characterized by FT-IR and 1H NMR spectra. The properties of the imidazolium-functionalized Am-PAEKS (Im-Am-PAEKS) including ionic conductivity, dimensional stability, thermal stability, fuel cell performance and mechanical property are investigated thoroughly. The hydroxide conductivities of the prepared membranes are in the range of 1.1 × 10?2–13.9 × 10?2 S cm?1 (20–80 °C). The membranes exhibit excellent alkaline stability including high thermal stability and mechanical property after soaking in 2 M NaOH aqueous solution for 300 h. This study indicates that the imidazolium-functionalized membranes containing pedant amino groups have the potential to be applied in alkaline fuel cells.
