ANION EXCHANGE MEMBRANE OF POLY(TETRA PHENYL ETHER SULFONE) CONTAINING HEXA-IMIDAZOLIUM HYDROXIDES FOR ALKALINE FUEL CELL APPLICATION

摘要

The present invention relates to a material of an anion electrolyte membrane used for an alkali fuel cell and, more specifically, to an anion electrolyte membrane material, in which six imidazole hydroxide anions are adhered onto multi-phenyl to increase a hydrophilic area, thereby improving ion conductivity. According to the present invention, provided is a sulfonated poly(tetraphenylether) polymer containing hexaimidazolium hydroxide in which six imidazole hydroxide anions are adhered onto multi-phenyl to increase a hydrophilic area, thereby improving ion conductivity. Accordingly, chemical stability and heat stability which have lacked in a fuel cell membrane using a quaternary ammonium group of conventional anion electrolyte membranes are improved, and high durability is ensured in a low hydrophilic alkali environment. Meanwhile, an ion exchange capacity (IEC) shows a high value of 2.41 mmol/g.