Provided is a polymer electrolyte containing a block copolymer comprising one or more blocks having sulfonic acid groups and one or more blocks having substantially no sulfonic acid group, and at least one block among all blocks is a block having aromatic rings in the main chain thereof, and a method for producing the same. The polymer electrolyte is suitable for a proton conductive film of a fuel cell due to excellent water resistance and heat resistance, and high proton conductivity.
本发明提供了一种聚合物电解质,它含有一种嵌段共聚物,该嵌段共聚物由一个或多个具有
磺酸基团的嵌段和一个或多个基本上没有
磺酸基团的嵌段组成,所有嵌段中至少有一个嵌段是主链上具有芳香环的嵌段,还提供了生产这种聚合物电解质的方法。该聚合物电解质具有优异的耐
水性、耐热性和高质子传导性,适用于燃料电池的质子传导膜。