聚甲基丙烯酸甲酯稀土铕配合物的合成制备及其表征

Synthesis and Characterization of Rare Earth Europium Complexes with Poly Methyl Methacrylate

本文研究目的是制备一种含有稀土铕的有机高分子材料.首先以三价稀土铕离子为中心原子,与苯甲酸和丁烯酸反应制备了Eu^(3+)-苯甲酸-丁烯酸配合物(Eu-BA-CA);再使其与邻菲罗啉结合生成Eu^(3+)-苯甲酸-丁烯酸-邻菲罗啉配合物(Eu-BA-CA-phen);然后该配合物与甲基丙烯酸甲酯单体聚合,得到高分子铕配合物(Eu-BA-CA-phen-PMMA).通过对其进行溶解性研究,并利用红外光谱、核磁共振氢谱、凝胶渗透色谱、紫外光谱、差示扫描量热分析和荧光光谱等对铕配合物组成、结构进行表征.结果显示:成功制备了聚甲基丙烯酸甲酯高分子铕配合物,该高分子铕配合物在丙酮中具有良好的溶解性,并研究了该共聚物的发光性质.

The purpose of this paper is to prepare an organic polymer material containing rare earth europium.Firstly,Eu^(3+)-Benzoic acid-Crotonic acid complex(Eu-BA-CA)was prepared by the reaction of Eu^(3+),Benzoic acid and Crotonic acid.Then,Eu-BA-CA was combined with O-phenanthroline to form Eu^(3+)-Benzoic acid-Crotonic acid-Phenanthroline complex(Eu-BA-CA-phen).At last,the complex Eu-BA-CA-phen was polymerized with methyl methacrylate monomer to obtain polymer europium complex(Eu-BA-CA-phen-PMMA).The composition and structure of europium complex were characterized by FTIR,1H-NMR,GPC,UV,DSC and fluorescence spectra.The results showed that the polymer europium complex of poly-methyl methacrylate was successfully prepared,and the polymer europium complex had good solubility in acetone.The fluorescence intensity and luminescent properties of the copolymer were also studied.