8-羟基喹哪啶-丙烯酸-镓(Ⅲ)与甲基丙烯酸甲酯共聚物的光致发光研究

制备了8-羟基喹哪啶、丙烯酸与镓(Ⅲ)的三元配合物，将此配合物与甲基丙烯酸甲酯共聚后得到一种含镓(Ⅲ)的共聚物，这种共聚物易溶于氯仿、丙酮等普通低沸点溶剂，具有良好的成膜性能。通过红外光谱、元素分析、紫外光谱等方法对三元配合物和共聚物的组成进行了表征。三元配合物和共聚物的荧光光谱测试，表明共聚物在496 nm处能发出较强的荧光。

Study on Photoluminescence of 8-Hydroxyquinaldine Gallium Acrylate and Methyl Methacrylate Copolymer

A new copolymer of 8-hydroxyquinaldine gallium acrylate and methyl methacrylate was prepared. The composition and properties of the copolymer were characterized by FTIR, UV-Vis, DSC, TG and fluorescence spectra. A strong blue-green photoluminescence, with the peak at 496 nm, was observed for the copolymer/CHCl3 solution. Effect of monomer ratio and concentration on the photoluminescence property of the copolymer was investigated. The results showed that the maximum fluorescence intensity was attained when Ga(Mq)2A: MMA was 1:20, the maximum excitation wavelength is approximately 263 nm when the concentration of the copolymer is under 2 g x L(-1), but the maximum excitation wavelength exceeds 365 nm when the concentration is above 4 g x L(-1). The copolymer was soluble in chloroform, acetone, and DMF at 25 degrees C, so it could be easier to prepare electroluminescent device by spin-coat technology.