Sulfonated polyarylenes have excellent processability and methanol resistance.
The polyarylene includes a structural unit (S) represented by Formula (2-2) below and a structural unit (T) represented by Formula (2-3) below, the structural unit (S) accounting for a proportion "s" of 95 to 50 mol%, the structural unit (T) accounting for a proportion "t" of 5 to 50 mol% ("s"+ "t" = 100 mol%) :
wherein each A independently represents a divalent linking group represented by -CO- or -SO2-; and R1 to R4 each independently represent a hydrogen atom, a fluorine atom, an alkyl group or an aryl group.
磺化聚芳基烯具有优异的加工性和耐
甲醇性。
聚芳基烯包括下式(2-2)表示的结构单元(S)和下式(2-3)表示的结构单元(T),结构单元(S)所占比例 "s "为 95 至 50 摩尔%,结构单元(T)所占比例 "t "为 5 至 50 摩尔%("s "+"t"=100 摩尔%):
其中,每个 A 独立地代表由 -CO- 或 -SO2- 表示的二价连接基团;R1 至 R4 各自独立地代表氢原子、
氟原子、烷基或芳基。