## 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
Synthesis and studies of polybenzimidazoles for high-temperature fuel cells
β Scribed by I. I. Ponomarev; D. Y. Razorenov; I. I. Ponomarev; Y. A. Volkova; K. M. Skupov
- Book ID
- 125806385
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2014
- Tongue
- English
- Weight
- 247 KB
- Volume
- 50
- Category
- Article
- ISSN
- 1023-1935
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## Abstract A series of polybenzimidazoles (PBIs) incorporating main chain sulphonic acid groups were synthesised as random copolymers with __p__βPBI in varying ratios using polyphosphoric acid (PPA) as both the polymerisation solvent and polycondensation reagent. The PPA process was used to produc
## Abstract A series of novel segmented block copolymers of sulphonated polybenzimidazole (PBI) (sβPBI) and __p__βPBI were prepared with various polymer ratios (10β90βmol% sβPBI; 90β10βmol% __p__βPBI). A twoβstep synthesis of oligomeric species, followed by combination and further polymerisation wa