A polyarylene copolymer having a sulfonic acid group which has high proton conductivity and reduced swelling in hot water and reduced shrinkage in drying; a solid polymer electrolyte and a proton conductive membrane comprising the copolymer; and a membrane-electrode assembly using these.
The polyarylene block copolymer comprises a polymer segment (A) having a sulfonic acid group, and a polymer segment (B) having substantially no sulfonic acid group, the polymer segment (B) having substantially no sulfonic acid group comprising a structural unit represented by the following formula (1).
一种具有
磺酸基的聚
芳烃共聚物,具有高质子传导性能,在热
水中具有减少肿胀和干燥中减少收缩的特性;包括该共聚物的固体聚合物电解质和质子导电膜;以及使用这些的膜电极组件。该聚
芳烃嵌段共聚物包括具有
磺酸基的聚合物段(A)和基本上没有
磺酸基的聚合物段(B),基本上没有
磺酸基的聚合物段(B)包括由以下公式(1)表示的结构单元。