甲基丙烯酸甲酯-铕配合物共聚红色发光材料的合成及荧光性能

Bright Red Luminescent Material of a New Eu^(3+)-Complex Copolymerized with Methyl Methacrylate

合成了一种新的有机配体1-苯基-4-甲基-4-烯-1,3-戊二酮(MPPE)和相应的四元铕配合物,二(α-噻酚甲酰三氟丙酮)(1-苯基-4-甲基-4-烯-1,3-戊二酮)(1,10-邻菲咯啉)合铕(Ⅲ)(Eu(TTA)2(MPPE)(phen)),该配合物在紫外光的激发下发射出强烈的窄带红色荧光,最强发射峰位于612 nm.该四元配合物与甲基丙烯酸甲酯共聚得到聚甲基丙烯酸甲酯-铕(Ⅲ)配合物发光材料,在实验条件下,该聚合物发光材料的发光强度随着铕配合物含量的增加而增强,没有出现浓度猝灭现象.

A new organic ligand, 4-methyl-1-phenyl-1,3-pentanedione-4-ene（MPPE）, and the corresponding quaternary Eu^3＋ -complex, bi （ α-thenoyhrifluoroacetonate ） （ MPPE ） （1,10-phenanthroline） europium （ Ⅲ ） （ Eu （TTA） 2 （MPPE） （phen） have been synthesized. The copolymerized complex, PMMA-Eu （ TTA ）2 （ MPPE ） （phen）, was synthesized by copolymerization of the quaternary europium complex with methyl methacrylate. The europium complex and copolymers showed bright red luminescence under ultraviolet light excitation, and the strongest emission peak is located at 61：2 nm. Moreover, luminescence intensity of the copolymers increased with the content of europium complex, and concentration quench phenomenon was not observed when the weight concentration of europium complex was lower than 10 %.