Preparation of Crosslinked Sulfonated Polyimide Membrane with High Proton Conductivity and Application to Fuel Cell

Chang Hyun Lee; Joon Yong Sohn; Ho Bum Park; Young Moo Lee

doi:10.11491/apcche.2004.0.526.0

Asian Pacific Confederation of Chemical Engineers congress program and abstracts

Session ID : 1P-02-009

DOI https://doi.org/10.11491/apcche.2004.0.526.0

Conference information

Host: The Society of Chemical Engineers, Japan

Preparation of Crosslinked Sulfonated Polyimide Membrane with High Proton Conductivity and Application to Fuel Cell

Chang Hyun Lee, Joon Yong Sohn, Ho Bum Park, Young Moo Lee

Author information

Keywords: crosslinked sulfonated polyimides, proton conductivity, methanol permeability, fuel cell

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

The crosslinked sulfonated polyimides with different sulfonation degree by a sulfonated diamine were prepared by polycondensation reaction in m-cresol using various crosslinkers with various chain length. The preparation of crosslinked sulfonated polyimides was characterized and confirmed by NMR and FT-IR. Each sulfonated polyimide membranes were investigated by ion exchange capacity, methanol permeability, water vapor sorption, water uptake, and proton conductivity to observe the effect of crosslinkers having different chain length.

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