铕-钆-聚N-乙烯基乙酰胺共发光体系的光学性能  

Study on the Mixture Columinescence Effect of Eu(Gd) Complexes with Poly(N-Vinylacetamide)

作　　者：孙勇 陈明清 陆天虹[2] 黄晓华[1] Akashi 

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214036 [2]南京师范大学化学与环境科学学院 [3]大阪大学工学部分子化学系,日本吹田市5650871

出　　处：《江南大学学报（自然科学版）》2005年第2期191-194,共4页Joural of Jiangnan University (Natural Science Edition)　

基　　金：国家自然科学基金项目(20243002);国家计委稀土专项基金项目(GJX01100626);教育部重点项目(02059);江苏省高技术研究基金项目 (BG2001045)资助课题

摘　　要：在乙醇溶液中合成了掺杂Gd3+的铕聚N 乙烯基乙酰胺(PNVA)的配合物.测定并研究了配合物的红外光谱、紫外光谱和荧光光谱.结果表明:配合物的最佳激发波长为262 nm;在此波长激发下配合物发出较强的荧光,不发光的Gd3+离子对Eu3+离子的发光有一定的增强作用,而不发光稀土Gd3+离子对Eu3+离子的发射峰位影响不大.Europium-gadolinium-poly(N-vinylacetamide) complexes were synthesized and characterized by UV-Vis absorption spectroscopy, FT-IR, and fluorescence spectroscopy. The results of UV-Vis and FT-IR suggested that europium and gadolinium ions be bonded to amide group of PNVA polymer. Fluorescence experiment indicated that the characteristic emission intensity of terbium ion was greatly increased and possibly sensitized by gadolinium ion. Moreover, the wavelengths of europium characteristic emissions were changed slightly.

关 键 词：稀土 配合物 荧光光谱 

分 类 号：O634.5[理学—高分子化学]