Choi, Jieun Jang, Jue-Hyuk Chae, Ji Eon Park, Hee-Young Lee, So Young Jang, Jong Hyun Kim, Jin Young Henkensmeier, Dirk Yoo, Sung Jong Lee, Kwan Young Sung, Yung-Eun Kim, Hyoung-Juhn 2024-01-19T18:02:40Z 2024-01-19T18:02:40Z 2021-09-05 2020-03 1598-5032 https://pubs.kist.re.kr/handle/201004/118911 In this study, spirobiindane-based poly(arylene ether sulfone)s with quaternary ammonium-functionalized side chains were synthesized as alkaline anion exchange membrane fuel cell (AEMFC) electrode binding materials. A series of novel AEMFC electrode ionomers with different main-chain structures were prepared. Three-dimensional spirobiindane structures were introduced to improve the gas permeability of the binding material. The ionomers were characterized by NMR and thermogravimetric analysis. Single-cell performance tests using the ionomers were also carried out. The ionomer sample with a spirobiindane unit in the polymer backbone and quaternary ammonium-functionalized hexyloxy side chain showed good potential for AEMFC applications. A single-cell using this ionomer as a binder exhibited a peak power density of 140 mW/cm(2). The modification of main-chain is considered to be a suitable approach for the synthesis of AEMFC electrode ionomers. English POLYMER SOC KOREA Spirobiindane-Based Poly(arylene ether sulfone) Ionomers for Alkaline Anion Exchange Membrane Fuel Cells Article 10.1007/s13233-020-8036-x 1 MACROMOLECULAR RESEARCH, v.28, no.3, pp.275 - 281 MACROMOLECULAR RESEARCH 28 3 275 281 N scie scopus kci ART002567723 000522653300012 2-s2.0-85078320879 Polymer Science Polymer Science Article HYDROXIDE ION CONDUCTIVITY STABILITY PERFORMANCE CATIONS SPACERS alkaline anion exchange membrane fuel cell binder ionomer poly(arylene ether sulfone) spirobiindane unit