铽芳香羧酸丙烯酰胺共聚丙烯酸乙酯发光聚合物的合成与性能研究

Synthesis and Luminescent Properties of the Complexes of Terbium with Aromatic Carboxylic Acid and Acrylamide-co-ethylacrylate

采用先配合后聚合的方法,制备了5种新的铽芳香羧酸丙烯酰胺共聚丙烯酸乙酯聚合物。利用红外光谱、紫外光谱分析对它们的结构进行了表征;用热分析仪研究了它们的热性能;并采用荧光光谱仪对它们的发光性能进行了研究。结果表明,所合成的铽芳香羧酸丙烯酰胺共聚丙烯酸乙酯聚合物均具有良好的热性能和发光性能,其发光强度均随配合物单体含量的增加而增大。同时,铽配合物单体与丙烯酸乙酯单体聚合后,由于分子结构的改变,使配体的能量传递效率发生了变化,从而引起铽芳香羧酸丙烯酰胺共聚丙烯酸乙酯聚合物的发光强度大小顺序与铽芳香羧酸丙烯酰胺配合物单体的发光强度大小顺序不同。

Five complexes of terbium with aromatic carboxylic acid and acrylamide- co- ethylacrylate have been synthesized by method from coordination to polymerization, and characterized by means of FT- IR and UV spectra analysis. Their thermal and luminescent properties have also been investigated with thermal analysis and fluorescence spectra instruments, respectively. The results reveal all terbium macro - molecule complexes possess nice thermal and luminescent properties, and their fluorescence intensity increases with the increment of the content of the complex monomers, respectively. After terbium complexes monomers were polymerized to ethyl acrylate, the change of molecule structures caused the energy transfer effinciency of ligands to change, and led to the luminescent intensity sequence of the complexes of terbium with aromatic carboxylic acid and acrylamide - co - ethylacrylate to be different from that of terbium complexes monomers.