关键词: 铕络合物, 苯甲酰化, 甲烷P, 聚苯乙烯, 聚丙烯酸, 发光特性, 红外分光光度法, 紫外分光光度法, Ｘ射线光电子谱法

Luminescent rare earth complexes, particularly europium β- diketonates, have been intensively studied with respect to applications for luminescence. Recently, rare earth complexes have attracted considerable attention for organic electroluminescent (EL) devices as well as for optical microcavity emitters owing to their inherent extremely sharp emission bands and potentially high internal quantum efficiency. The luminescent Eu-containing copolymer [NaEu(Ⅲ)- DBM-PSAA] was synthesized through the reaction of copolymer of acrylic acid and styrene(Mw=3000) with metallorganic complex [NaEu(DBM)4], which was obtained between Eu and dibenzoyl methane. The coordination polymer was characterized by FT-IR, UV, XPS and its composition and the structure were determinated. The results of electrical conductivity methods and elemental analysis indicate that each Eu(Ⅲ) ion is coordinated by carboxyl from three units in the Eu(Ⅲ)-DBM- PSAA molecule and one DBM^-. The Eu(Ⅲ) content of the coordination polymer reachs up to 12.23%. The coordination polymer is insoluble in common organic solvent, it is soluble in the mixed solvent of glyceryl alcohol and isopropanol. The coordination polymer exhibits intensive red light at 615 nm under UV excitation at room temperature, which is attributed to the ^5D0→^7F2 transition of Eu(Ⅲ) ions.

Key words: EUROPIUM COMPLEX, BENZOYLATION, METHANE P, POLYSTYRENE, POLYACRYLIC ACID, CHARACTERISTICS OF LUMINESCENCE, INFRARED SPECTROPHOTOMETRY, ULTRAVIOLET SPECTROPHOTOMETRY, X-RAY PHOTOELECTRON SPECTROMETRY