聚合物对Eu(TTA)_3·2NMP发光性能的影响  

Influence of Polymers on Luminesence Property of Eu(TTA)_3·2NMP

作　　者：刘兴妤[1] 关晓琳[1] 苏致兴[1] 

机构地区：[1]兰州大学化学化工学院,兰州730000

出　　处：《高等学校化学学报》2005年第4期769-772,共4页Chemical Journal of Chinese Universities

摘　　要：研究了聚乙烯吡咯烷酮(PVP)、聚乙烯醇(PVA)、聚甲基丙烯酸甲酯(PMMA)三种共混膜材料之间对铕/α-噻吩甲酰三氟丙酮/N-甲基吡咯烷酮[Eu(TTA)3·2NMP]三元配合物发光性能的差异.实验发现,无论是溶液状态,还是共混膜材料,三元配合物/聚合物的荧光强度均大于三元配合物的荧光强度,为稀土荧光物质的成膜与加工提供了重要的实验依据.The influence of three types of blending polymer including polyvinylpyrrolidone(PVP), polyvinyl alcohol(PVA) and polymethyl methacrylate(PMMA) on the luminescence property of ~Eu/thenoyl trifluoroacetone/~N-methyl -2-pyrrolidone [Eu(TTA)_3·2NMP] was studied. From the results, we found that the fluoresence intensity of ternary complex compounded with polymer was stronger than that of ternary complex, no matter that the ternary complex was either liquid or film. This paper offered the important experment foundation for membrane-forming and processing of luminescent rare earths. These systems were characterized by elementary analysis, FT-IR and fluorescent spectrometry. {Eu(TTA)}_3·2NMP keeps the coordination structure of β-diketones to Eu^3+ , but some supramolecular interactions exist between the complex and polymers, leading to the slight change of the luminescent characteristics of the composites compared to complex.

关 键 词：EU^3+ α-噻吩甲酰三氟丙酮(TTA) 聚乙烯吡咯烷酮(PVP) 聚乙烯醇(PvA) 聚甲基丙烯酸甲酯 (PMMA) 发光性能 

分 类 号：O631[理学—高分子化学]