Progress of ion exchange membrane based on poly(norbornene)s derivatives via ring-opening metathesis polymerization

Ion exchange membrane is a crucial component in both fuel cells and flow battery, which plays a decisive role in performance. Because ring opening metathesis polymerization of norbornene polymer main chain retains its double bond, and has excellent thermal stability and good processability, it is becoming a research hotspot of the ion exchange membrane materials. This paper explored the research situation of cation exchange membrane, an anion-exchange membrane and composite ion-exchange membrane based on recent ring opening metathesis polymerization of norbornene polymers; analyzed the structure of the membrane composition and performance testing; and with the performance of Nafion were compared. Finally, we look to the development trend of norbornene polymer used in the field of ion exchange membrane.