Poly(terphenylene) Anion Exchange Membranes: The Effect of Backbone Structure on Morphology and Membrane Property

A new design concept for ion-conducting polymers in anion exchange membranes (AEMs) fuel cells is proposed based on structural studies and conformational analysis of polymers and their effect on the properties of AEMs. Thermally, chemically, and mechanically stable terphenyl-based polymers with pend...

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Bibliographic Details
Published in:ACS macro letters 2017-05, Vol.6 (5), p.566-570
Main Authors: Lee, Woo-Hyung, Park, Eun Joo, Han, Junyoung, Shin, Dong Won, Kim, Yu Seung, Bae, Chulsung
Format: Article
Language:English
Subjects:
Energy Sciences
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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Summary:A new design concept for ion-conducting polymers in anion exchange membranes (AEMs) fuel cells is proposed based on structural studies and conformational analysis of polymers and their effect on the properties of AEMs. Thermally, chemically, and mechanically stable terphenyl-based polymers with pendant quaternary ammonium alkyl groups were synthesized to investigate the effect of varying the arrangement of the polymer backbone and cation-tethered alkyl chains. The results demonstrate that the microstructure and morphology of these polymeric membranes significantly influence ion conductivity and fuel cell performance. The results of this study provide new insights that will guide the molecular design of polymer electrolyte materials to improve fuel cell performance.
ISSN:2161-1653
2161-1653
DOI:10.1021/acsmacrolett.7b00148