Abstract: In order to improve the utilization of wood and achieve the functionalization of wood surface, the luminous woods were prepared. Firstly, the modified ligands were synthesized by the reaction between 3-aminopropyltriethoxysilane and phthaloyl dichloride. Then the modified ligands and the luminous terbium complexes that prepared with the terbium nitrate hexahydrate were concatenated on the surface of poplar veneer via hydrolysis condensation reaction to form the luminous wood. The elementary composition and micro morphology of wood surface were analyzed by FT-IR, EDXA and SEM. According to fluorescence spectrum, the mechanism of reaction was speculated. The results showed that the modified rare-earth complexes were combined on the surface of wood with the formation of hydrogen bond and the dehydration condensation. The compact membrane of the modified terbium complexes on the surface of wood endowed the wood with the fluorescence property. The fluorescence intensity of the modified wood promoted to the maximum when the reaction was carried out for 8 hours and the temperature of reaction rose to 60 ℃. But the fluorescence intensity would descend when the temperature of reaction was more than 60 ℃.

Key words: silane modification, rare earth, fluorescen material, wood surface functionalization