Crosslinked Block Copolymer Electrolyte Membranes with High Proton Conductivity
polystyrene-b-poly(hydroxyethyl acrylate)-b-poly(styrene sulfonic acid), (PS-b-PHEA-b-PSSA) at 23:23:54 wt ratios and polystyrene-b-poly(hydroxyethyl acrylate)-b-poly(sulfopropyl methacrylate), (PS-b-PHEA-b-PSPMA) at 17:17:66 wt ratios were sequentially synthesized via atom transfer radical polymerization for PEMFC. As increasing amounts of SA, ion exchange capacity (IEC) continuously increased for both membranes but water uptake decreased. As a result, the proton conductivities of crosslinked triblock copolymer membranes increased up to 0.049 and 0.037 S/cm at room temperature.
polymer electrolyte membranes fuel cells (PEMFC) atom transfer radical polymerization (ATRP) crosslink proton conductivity
Do Kyoung Lee Yong Woo Kim Jin Kyu Choi Jong Hak Kim
Department of Chemical Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, South Korea
国际会议
The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)
北京
英文
2007-10-14（万方平台首次上网日期，不代表论文的发表时间）