Polymer compound, and electroluminescent device material and electroluminescent device including polymer compound

A polymer compound including a Structural Unit (A) represented by Chemical Formula (1):

• wherein, in Chemical Formula (1),
• R11 to R14 and R21 to R24 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted cycloalkoxy group, a substituted or unsubstituted aryl group, or a halogen atom, wherein R11 and R21 are optionally linked to each other to form a ring,
• L1 is a substituted or unsubstituted aromatic hydrocarbon group having 6 to 25 ring-member atoms, or a substituted or unsubstituted aromatic heterocyclic group having 5 to 25 ring-member atoms,
• Ar1 is a substituted or unsubstituted aromatic hydrocarbon group having 6 to 25 ring-member atoms,
• Ar2 is a substituted or unsubstituted aromatic hydrocarbon group having 6 to 25 ring-member atoms, or a substituted or unsubstituted aromatic heterocyclic group having 5 to 25 ring-member atoms, or is linked to Ar1 to form a ring,
• X1 is a substituted or unsubstituted aromatic hydrocarbon group having 6 to 25 ring-member atoms,
• Y1 is a substituted or unsubstituted aromatic hydrocarbon group having 6 to 25 ring-member atoms, and
• at least one of X1 and Y1 is an aromatic hydrocarbon group having 6 to 25 ring-member atoms substituted with an alkyl group having 1 to 14 carbon atoms substituted with a carboxyl group or an alkyl group having 1 to 14 carbon atoms substituted with a group having a carboxyl group.