Patent ID: 9653745
Date: 2017-05-16
CPC Classifications: C08G,C08J,H01B,H01M,Y02E,Y02P

Claim:
1. A block copolymer comprising: a segment (A1) containing an ionic group; a segment (A2) not containing an ionic group; and a linker moiety connecting the (A1) and (A2) segments, wherein the segment (A1) containing an ionic group comprises a constituent unit represented by a general formula (S1) shown below: where, in the general formula (S1), Ar Ar Ar where, in the general formula (S2), Ar in Ar the * symbol of the general formula (S2) comprises a bond moiety; wherein the segment (A2) not containing an ionic group includes the constituent unit represented by the general formula (S2) in the content of 20 mol % or larger; wherein the linker moiety comprises: (a) any of the general formulae (L1) to (L7), where, in the general formula (L1), X is an electron-withdrawing group selected from the group consisting of H, NO in the general formula (L2), Y is an electron-withdrawing group selected from the group consisting of NO in the general formula (L3), Z is an electron-withdrawing group selected from the group consisting of NO in the general formula (L5), R is an arbitrary organic group; in the general formula (L6), Ar is an arbitrary arylene group; and in the general formula (L7), E is oxygen or sulfur; the general formulae (L1) to (L7) can each be further substituted with an electron-withdrawing group, and in the general formulae (L1) to (L7), two or more kinds of X to Z, R, Ar, and E can be used independently of each other; and the * symbol of the general formulae (L1) to (L7) comprises a bond moiety.