aromatic polyether sulfone block copolymer, process for preparing aromatic polyether sulfone block copolymers, use of aromatic polyether sulfone block copolymers, fuel cell, and membrane for water treatment.

摘要

An aromatic polyether sulfone block copolymer comprises hydrophilic segments which have sulfonic acid groups and hydrophobic segments which have no sulfonic acid groups, wherein the proportion by weight of hydrophilic segments is from 0.02 to 0.35.