Synthesis of N-Phosphonoethylated Cardo Poly(benzimidazole) and Testing of Proton-Conducting Membranes Made of It

摘要

Poly(benzimidazoles) (PBIs) are one of the most promising and well-studied classes of polymers utilized as membranes in hydrogen-based high-temperature fuel cells (HTFC) as polymer—electrolyte complexes with orthophosphoric acid [1,2].