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Enhancement of Proton Transport by Nanochannels in Comb-Shaped Copoly(arylene ether sulfone)s

Authors

  • Dr. Nanwen Li,

    1. WCU Department of Energy Engineering, Hanyang University, Seoul 133-791 (Republic of Korea)
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  • Dr. Chenyi Wang,

    1. WCU Department of Energy Engineering, Hanyang University, Seoul 133-791 (Republic of Korea)
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  • So Young Lee,

    1. School of Chemical Engineering, College of Engineering, Hanyang University, Seoul 133-791 (Republic of Korea)
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  • Dr. Chi Hoon Park,

    1. School of Chemical Engineering, College of Engineering, Hanyang University, Seoul 133-791 (Republic of Korea)
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  • Prof. Young Moo Lee,

    Corresponding author
    1. WCU Department of Energy Engineering, Hanyang University, Seoul 133-791 (Republic of Korea)
    2. School of Chemical Engineering, College of Engineering, Hanyang University, Seoul 133-791 (Republic of Korea)
    • WCU Department of Energy Engineering, Hanyang University, Seoul 133-791 (Republic of Korea)
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  • Dr. Michael D. Guiver

    Corresponding author
    1. WCU Department of Energy Engineering, Hanyang University, Seoul 133-791 (Republic of Korea)
    2. Institute for Chemical Process and Environmental Technology, National Research Council, Ottawa, Ont, KIA OR6 (Canada)
    • WCU Department of Energy Engineering, Hanyang University, Seoul 133-791 (Republic of Korea)
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  • We gratefully acknowledge support of this research by the WCU (World Class University) program, National Research Foundation (NRF) of the Korean Ministry of Science and Technology (no. R31-2008-000-10092-0). NRCC publication 52850.

Abstract

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Combed to perfection: Fully aromatic comb-shaped copolymers based on a poly(arylene ether sulfone) (PAES) backbone with highly sulfonated (SA) poly(phenylene oxide) (PPO) graft chains have a nanochannel morphology (see picture) for efficient proton transport. These molecular structures show a dramatic enhancement in proton conductivity under partially hydrated conditions compared with typical hydrocarbon polymer electrolytes.

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