A polymer compound including a unit structure represented by the general formula (1): wherein m1 and m2 each equal 1 to 8, n1 and n2 each equal 0 to 7, m1+n1 and m2+n2 each equal 4 to 8, y represents 0 to 2, R1 represents a hydroxy group; a substituted or unsubstituted straight, branched or cyclic alkyl group; a substituted or unsubstituted aryl group, or a halogen atom, R3 represents a hydrogen atom, a substituted or unsubstituted straight, branched or cyclic alkyl group, or a substituted or unsubstituted aryl group, R2 represents any structure represented by general formula (2) in the specification, at least one R2 has an acid-dissociable site, R5 represents a hydroxy group, —O—R2—O—* or —O—R2—O—R55, and R6 represents a hydroxy group or —O—R2—O—*.