Polyelectrolyte composition containing aromatic hydrocarbon resin

摘要

A polyelectrolyte composition having high durability even under high-temperature low-level-humidification conditions (e.g., operating temperature of 100{C and 50{C humidification (corresponding to a humidity of 12 RH)); and a proton-exchange membrane comprising this polyelectrolyte composition. The polyelectrolyte composition comprises a polymer (A) having an ion-exchange group, a polyphenylene sulfide resin (B), and a polyphenylene ether resin (C) and/or a polysulfone resin (D).