Polybenzimidazoles for High Temperature
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Hyoung-Juhn Kim; Seong Jin An; Ju-Yong Kim; Jin Kyoung Moon; Sung Yong Cho; Yeon
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Article
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2004
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John Wiley and Sons
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English
β 102 KB
## Abstract Summary: Fuel cells were designed for high temperature operations. Poly[2,2β²β(__m__βphenylene)β5,5β²βbibenzimidazole] (PBI) was synthesized in a solution of P~2~O~5~, CH~3~SO~3~H, and CF~3~SO~3~H. The PBI was dissolved in a mixture of CF~3~CO~2~H and H~3~PO~4~ and the solution was used f