Lee, Hye-Jin Choi, Jieun Han, Jun Young Kim, Hyoung-Juhn Sung, Yung-Eun Kim, Hwayong Henkensmeier, Dirk Cho, Eun Ae Jang, Jong Hyun Yoo, Sung Jong 2024-01-20T11:33:47Z 2024-01-20T11:33:47Z 2021-09-05 2013-09 0170-0839 https://pubs.kist.re.kr/handle/201004/127722 Poly(dimethyl benzimidazolium) iodides were synthesized from polybenzimidazole derivatives by permethylation. They were easily changed to OH-, CO3 (2-) and HCO3 (-) ion conducting electrolytes by immersing in 1 M of KOH, K2CO3 and KHCO3. Properties of polymers were changed by the ion exchange process. The anion conducting membranes showed tough and flexible properties. The water uptake, ion exchange capacity and conductivity varied depending on the counter anions. One of the poly(dimethyl benzimidazolium) carbonate membranes, Me-DAB-OBBA-carbonate showed the highest water uptake (59 %) as well as ion conductivity (33.74 mS/cm at 80 A degrees C), and could be a good candidate for an anion exchange membrane for anion exchange membrane fuel cells. English Springer Verlag Synthesis and characterization of poly(benzimidazolium) membranes for anion exchange membrane fuel cells Article 10.1007/s00289-013-0978-0 1 Polymer Bulletin, v.70, no.9, pp.2619 - 2631 Polymer Bulletin 70 9 2619 2631 N scie scopus 000322156300008 2-s2.0-84881185948 Polymer Science Polymer Science Article HYDROXIDE Anion exchange membrane Anion exchange membrane fuel cell Polybenzimidazole Poly(dimethyl benzimidazolium)