作　　者： ; ; ; ;

机构地区： 福建师范大学材料科学与工程学院高分子研究所

出　　处： 《功能高分子学报》 2003年第1期49-53,共5页

摘　　要： 　将铕的有机配合物NaEu(TTA)4与聚(苯乙烯 丙烯酸)(PSAA)反应制备了铕配位聚合物[Eu(Ⅲ) TTA PSAA],用电导、DTA TGA、荧光光谱等对其进行了表征。由于配合物中存在着Eu3+分别与TTA-和PSAA分子中羧基的配位作用,并进一步交联,因此配合物样品均不溶于大部分有机溶剂,只能溶于N,N 二甲基甲酰胺和丙三醇/异丙醇的混合溶剂,且耐热性得到提高。配合物为褐色固体,在常温、紫外光下发出红光,主要是由于Eu3+离子的5D0→7F2跃迁。讨论了pH值对配合物荧光强度的影响,当pH=10时,合成的配合物具有最好的荧光性。 Three samples of coordination polymer \(I were formed by the reaction of metalorganic complex \ with copolymer of acrylic acid and styrene (Mw=3.00×103). These coordination polymers were characterized by conductance, DTATGA and fluorescence spectroscopy. It is certained that in these coordination polymers each Eu3+is coordinated by TTA-ion and carboxyl in the PSAA molecule, making these coordination polymers crosslink further. As a result, these coordination polymers, which are insoluble in most organic solvents and give higher thermal resistance, are brown solids. But it can be soluble in N, Ndimethylformamide and the mixed solvent of glycerol alcohol and isopropanol. The coordination polymer exhibited intense red light at 615nm under UV excitation at room temperature, which is attributed to the 5D0→7F2 transition of Eu(Ⅲ) ions. The effects pH on the fluorescence intensity were investigated. The fluorescence spectrum indicats that the coordination polymer has good fluorescence properties at pH=10.0.

关 键 词： 稀土 铕 金属有机配合物 配位聚合物 荧光光谱

领　　域： [理学] [理学]