Preparation method of sulfonated poly (arylene sulfide sulfone) / polyimide block type proton exchange membrane material

The present invention discloses a preparation method of a sulfonated poly (arylene sulfide sulfone) / polyimide block type proton exchange membrane material. The method adopts a two-step method for termination, a meta-or para-amino functional group is introduced into the terminal end of a sulfonated poly (arylene sulfide sulfone) chain section by end-capping reaction of the polymer chain section, and a block copolymer is synthesized by imidization coupling reaction of the amino-terminated sulfonated poly (arylene sulfide sulfone) hydrophilic section and an anhydride terminated polyimide hydrophobic section. The method not only overcomes the problem that a sulfonated poly(arylenethioethersulfone) film is very easy to swell and dissolve in high humidity or water, also guarantees that PEM has high thermal stability and proton conductivity especially proton conductivity under high temperature and humidity. 本发明为种磺化聚芳硫醚砜/聚酰亚胺嵌段型质子交换膜材料的制备方法。该方法采用二步法封端，通过聚合物链段的封端反应，在磺化聚芳硫醚砜链段的末端引入间位或对位的氨基官能团，利用带有氨端基的磺化聚芳硫醚砜亲水段与带有酸酐端