Synthesis and Properties of Benzimidazole Group-Containing Sulfonated Polyimide Proton Exchange Membranes  
XU Hong, XU Fan, ZHANG Gui-Mei, MA Rui, GUO Xiao-Xia, FANG Jian-Hua
Journal of Shanghai Jiaotong University . 2012, (03): 498 -503 .