POLYARYLENE COPOLYMER HAVING, IN SIDE CHAIN THEREOF, AROMATIC RING CONTAINING PHOSPHONATE GROUP

摘要

Disclosed is a polyarylene copolymer which contains a structure having a phosphonated aromatic ring in a side chain thereof, and which is useful for the production of a proton conductive film that is applicable to electrolytes for primary batteries, electrolytes for secondary batteries, polymeric solid electrolytes for fuel cells, display elements, various types of sensors, signaling media, solid capacitors, ion exchange membranes and the like. Specifically disclosed is a polyarylene copolymer characterized by containing a structural unit represented by general formula (1). (In formula (1), E's independently represent at least one structure selected from the group consisting of a direct bond and groups -O-, -S-, -CO-, -SO2-, -SO-, -CONH- and -COO-; Ar31, Ar32 and Ar33 independently represent a bivalent or trivalent organic group having a benzene ring, a naphthalene ring or a nitrogenated heterocyclic ring, or an organic group produced by substituting one, some or all of hydrogen atoms by a fluorine atom or fluorine atoms in the aforementioned organic groups; R31 represents at least one structure selected from the group consisting of a direct bond, -O(CH2)p-, -O(CF2)p-, -(CH2)p- and -(CF2)p- (wherein p represents an integer of 1 to 12); e represents an integer of 0 to 10; f represents an integer of 1 to 5; g represents an integer of 0 to 4; and h represents an integer of 0 to 1.)