Fluorenone-based polyamines,as novel light-emitting polymers,were synthesized by the condensation polymerization of 3,6-dibromo-9-fluorenone with different aromatic diamines by palladium-catalyzed aryl amination reaction.The structures of the polymers were characterized by means of FT-IR,1H NMR spectroscopy and elemental analysis.The experimental results show a good agreement with the proposed structures.TGA measurement exhibits that the polymers possess good thermal stabilities with high decomposition temperatures (T5 ≥ 400 ℃).Due to the photo-induced intramolecular charge-transfer (ICT)of fluorenone-based polyimines,these polymers show significantly strong photonic luminescence in N,Ndimethylacetamide.