The objective of the invention is to solve the problems of conventional polymer electrolyte membranes, including small ion-exchange capacity and low oxidation and methanol resistance. A polymer film substrate is irradiated with γ-rays, electron beams or other radiations to perform multi-graft polymerization with functional monomers and then the polymer film substrate containing the grafted molecular chains or the graft molecular chains into which sulfonic acid groups have been introduced is crosslinked by irradiation to produce a polymer electrolyte membrane that has outstanding oxidation resistance, dimensional stability, electrical conductivity and methanol resistance and which can be controlled in ion-exchange capacity over a wide range.
本发明的目的是解决传统聚合物电解质膜的问题,包括离子交换容量小、抗氧化性和抗
甲醇性低。用 γ 射线、电子束或其他辐射辐照聚合物薄膜基材,使其与功能性单体进行多接枝聚合,然后通过辐照交联含有接枝分子链或引入
磺酸基团的接枝分子链的聚合物薄膜基材,生产出具有出色的抗氧化性、尺寸稳定性、导电性和耐
甲醇性,且离子交换容量可在较大范围内控制的聚合物电解质膜。