A polymer compound has a repeating unit represented by general formula (1): wherein R1a represents an alkyl group, an aryl group, a monovalent aromatic heterocyclic group or an aralkyl group, each possibly substituted and the same or different; and X1a represents a group selected from formulae (1a) to (1c).] wherein R1c represents an aryl group or a monovalent aromatic heterocyclic group, possibly substituted; and R1d to R1f represent each independently an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, a fluorine atom or a cyano group; and the pairs R1d and R1e, R1f and R1g, R1d and R1f, and R1e and R1g may be mutually linked to form a ring together with a carbon atom to which they are linked.