Polybenzoxazine-based compound, electrolyte membrane including the same, and fuel cell employing the electrolyte membrane

摘要

Provided is a crosslinked object of a polybenzoxazine-based compound formed of a polymerized resultant of a first monofunctional benzoxazine-based monomer or a second multifunctional benzoxazine-based monomer with a crosslinkable compound. The crosslinked object of the polybenzoxazine-based compound has a strong acid trapping capacity with respect to the benzoxazine-based compound and high mechanical properties due to the crosslinking. Also, solubility of the crosslinked object in polyphosphoric acid is removed, thus the crosslinked object is very stable chemically.