A polymer electrolyte comprising a hydrophilic segment having a sulfonic acid groups and a hydrophobic segment having no sulfonic acid group, each segment having an aromatic ring in its main chain, wherein the polymer electrolyte is an aromatic block copolymer having an ion-exchange capacity of solely the hydrophilic segment at 3.6 mmol/g or more, and an ion-exchange capacity of the block copolymer in the range of from 0.5 mmol/g to 3.0 mmol/g; a polymer electrolyte membrane produced from the polymer electrolyte and a fuel cell using thereof.
一种聚合物电解质,包括一个亲
水性段和一个不含
磺酸基团的疏
水性段,每个段都在其主链中具有芳香环,其中聚合物电解质是一种芳香族嵌段共聚物,其仅具有亲
水性段的离子交换容量为3.6毫摩尔/克或更高,并且嵌段共聚物的离子交换容量在0.5毫摩尔/克到3.0毫摩尔/克的范围内;由该聚合物电解质制成的聚合物电解质膜和使用其的燃料电池。