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- W4327757682 abstract "Crosslinking has proven a powerful strategy for construction of highly proton-conductive membranes for high-temperature proton exchange membrane fuel cells (HTPEMFCs). In this work, a facile thermal cure-induced crosslink process is developed for crosslinking a novel nitrogen-dense distribution polybenzimidazole containing 4,5-diazafluorene (PBPBI) from a new diacid monomer, 9,9-di[4-(4-carboxy phenoxy) phenyl]-4,5-diazafluorene (DADCA). Because of the introduction of 4,5-diazafluorene unit, the solubility of polybenzimidazole in common used organic solvents and the proton conductivity of PBPBI are effectively improved. The thermal cure-induced cross-linked PBPBI membranes show excellent mechanical properties and high proton conductivities up to 0.1002 S cm−1 (180 °C, dry condition). A maximum power density of 632.4 mW cm−2 is obtained at 140 °C without humidification." @default.
- W4327757682 created "2023-03-18" @default.
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- W4327757682 date "2023-05-01" @default.
- W4327757682 modified "2023-10-16" @default.
- W4327757682 title "Thermal cure-induced crosslinked polybenzimidazole containing 4,5-diazafluorene and pyridine for high-temperature proton exchange membrane" @default.
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- W4327757682 doi "https://doi.org/10.1016/j.jpowsour.2023.232972" @default.
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