| abstract |
Abstract: PROBLEM TO BE SOLVED: To provide an ion exchange group by designing a polymer to form a membrane, instead of mixing another ion exchange resin into a conventional perfluoro (alkyl) sulfonic acid membrane. By obtaining a new ion-conductive polymer having a macrostructure in which the distance between the particles is small and the ion-exchange groups themselves are oriented, the ionic conductivity is larger than that of the conventional perfluoro (alkyl) sulfonic acid membrane. Provided is an orientation-type ion exchange membrane that shows stability. SOLUTION: An aromatic system I, a carboxyl system II, an alignment group system III, and a strong acid group system IV shown in the structural formula (1). Are cross-linked by a cross-linking agent, and the degree of polymerization h = 1 To 300, degree of polymerization i = 1 to 400, degree of polymerization j = 1 to 50, degree of polymerization k = 1 to 150, degree of polymerization m = 1 to 4 0, an ion exchange membrane comprising an ion exchanger having a degree of polymerization n = 10 to 1,000. |