作者：Jingmei Xu, Zhe Wang, Hongzhe Ni, Huixuan Zhang
关键字：Sulfonated poly(arylene ether ketone sulfone),Proton exchange membrane,Methanol permeability,Side-chainFuel cells
论文来源：期刊
具体来源：International Journal of Hydrogen Energy
发表时间：2017年

A series of side-chain type proton exchange membrane (PEM) based on sulfonated poly(arylene ether ketone sulfone) (S-SPAEKS) has been synthesized through a simple free radical reaction by grafting 2-acrylamido-2-methyl propane sulfonic acid (AMPS) onto the polymer main chain. The side-chain type membranes showed lower water absorption and swelling ratio than that of main-chain type membranes. S-SPAEKS^-2 exhibited the highest proton conductivity of 0.095 S cm^?1 at 80 °C, while its swelling ratio was only 7.09% at the same temperature. Much lowermethanol permeability in the range of 1.27 × 10^?8 cm² s^?1–2.61 × 10^?7 cm² s^?1compared to Nafion 117 (1.55 × 10^?6 cm² s^?1) were also observed for the prepared membranes. Moreover, hydrophilic/hydrophobic phase separation morphology is observed obviously from TEM images. The results indicate that the side-chain type S-SPAEKS membranes are good alternative PEM materials for fuel cells.