｛[Tb(L)_2(H_2O)_2](Hdmpy)(H_2O)_2｝_∞/丙烯酸酯类聚氨酯稀土高分子材料的制备及性能研究

Studies on preparation and properties of the rare earth complex {[Tb(L)_2(H_2O)_2](Hdmpy)(H_2O)_2}_∞/polyurethane acrylate rare earth polymer

以9,10-双蒽酸(H2L)和2,6-二甲基吡啶(Hdmpy)为配体,合成了一个二维结构的稀土配合物{[Tb(L)2(H2O)2](Hdmpy)(H2O)2}∞;用原位聚合法将该稀土配合物与丙烯酸类聚氨酯大分子单体复合,制备出{[Tb(L)2(H2O)2](Hdmpy)(H2O)2}∞/丙烯酸酯类聚氨酯稀土高分子材料,并研究了稀土配合物在材料中的分散及材料的热稳定性、荧光性能等。研究结果表明,配合物在稀土高分子材料中主要以200～500nm颗粒均匀分散;且该材料具有良好的热稳定性能(>300℃),在波长372nm的激发光下,材料在440nm出现最大荧光发射峰,有望应用于发光材料领域。

A two-dimensional(2-D) TbⅢ coordination complex {[Tb(L)2(H2O)2](Hdmpy)(H2O)2}∞(L = anthracene-9,10-dicarboxylate and Hdmpy = protoned 2,6-dimethylpyridine) was synthesized with the reaction of Tb(NO3)3 and anthracene-9,10-dicarboxylic acid ligand in the presence of 2,6-dimethylpyridine(dmpy).The composite material of {[Tb(L)2(H2O)2](Hdmpy)(H2O)2}∞-PUA were prepared by using {[Tb(L)2(H2O)2](Hdmpy)(H2O)2}∞ and macromonomers of polyurethane acrylate(PUA) through in situ polymerization.The dispersion of the rare-earth complex in composite material was characterized by AFM,and the thermal stability and luminescence properties were further investigated.The results reveal that the rare earth complex is dispersed in composite material at about 200-500nm and the resulting material possesses thermal stability(over 300℃) and the strongest fluorescence emission peak of the rare earth polymer appears at 440nm when the excitation wavelength is 372nm.This material can be applied in the fields of luminescent material.