Polymeric compound, electroluminescent device material, electroluminescent device, and electronic device

A polymeric compound comprising a structural unit represented by Chemical Formula 1:

• wherein, in Chemical Formula 1,
• R11 to R14, R21, R22, R31, and R32 are each independently a hydrogen atom or a hydrocarbon group having 1 to 18 carbon atoms,
• L1 is a substituted or unsubstituted aromatic hydrocarbon group having 6 to 25 ring-forming atoms, or a substituted or unsubstituted heteroaromatic ring group having 5 to 14 ring-forming atoms,
• x is 0, 1, or 2, and when x is 2, each occurrence of L1 is the same as or different from each other,
• L2 is a substituted or unsubstituted aromatic hydrocarbon group having 6 to 25 ring-forming atoms, or a substituted or unsubstituted heteroaromatic ring group having 5 to 14 ring-forming atoms, wherein L2 optionally forms a ring with Ar1,
• Ar1 is a substituted or unsubstituted aromatic hydrocarbon group having 6 to 25 ring-forming atoms, or a substituted or unsubstituted heteroaromatic ring group having 5 to 14 ring-forming atoms, wherein Ar1 optionally forms a ring with Ar2 or L2, and
• Ar2 is (i) an aromatic hydrocarbon group having 6 to 25 ring-forming atoms substituted with a linear hydrocarbon group having 1 to 12 carbon atoms, a branched hydrocarbon group having 3 to 12 carbon atoms, an aromatic hydrocarbon group having 6 to 25 ring-forming atoms, or a divalent heteroaromatic ring group having 5 to 14 ring-forming atoms, or (ii) an heteroaromatic ring group having 5 to 14 ring-forming atoms substituted with a linear hydrocarbon group having 1 to 12 carbon atoms, a branched hydrocarbon group having 3 to 12 carbon atoms, an aromatic hydrocarbon group having 6 to 25 ring-forming atoms, or a divalent heteroaromatic ring group having 5 to 14 ring-forming atoms, wherein Ar2 optionally forms a ring with Ar1.