脂肪酸铕配合物/PMMA的合成及发光性能  

(C_8H_(15)O_2)_x(C_(12)H_(23)O_2)_yEu/PMMA Luminescent Material

作　　者：胡珍[1] 林美娟[1] 

机构地区：[1]福建师范大学化学与材料学院,福州350007

出　　处：《应用化学》2009年第6期646-650,共5页Chinese Journal of Applied Chemistry

基　　金：福建省自然科学基金资助项目(2006J0250)

摘　　要：以一定比例正辛酸和月桂酸为第一配体,通过皂化法合成了脂肪酸铕配合物,并溶于甲基丙烯酸甲酯(MMA)单体通过本体聚合得到了含脂肪酸铕的PMMA光致发光聚合物材料AxByEu/PMMA(A为正辛酸根,B为月桂酸根,x、y分别表示正辛酸和月桂酸的摩尔比)。考察了不同的第二配体(咔唑、二甲基-联吡啶、邻菲罗啉、噻吩甲酰三氟丙酮HTTA)对脂肪酸铕聚合物发光性能的影响,选择出合适的第二配体HTTA,合成了A3Eu/HTTA/PMMA聚合物。通过红外光谱、紫外光谱及荧光光谱测试技术对配合物及聚合物的结构和荧光性能进行表征。结果表明,合成的含脂肪酸铕配合物及其聚合物均具有很好的光致发光性能,紫外激发能发射Eu3+离子的特征红光。当HTTA的质量分数减小至MMA的0.02%时,仍能很好地促进体系的发光,且不影响聚合物本身的透明性。New europium complexes （ C8H15O2 ） x （ C12 H23 O2 ） y Eu, which is soluble in MMA monomer, were synthesized with caprytlic acid （ C8H15O2 ） and lauric acid （ C12 H23 O2 ） as the first ligand by saponification method. Photoluminescent PMMA containing rare earth complexes AxByEu/PMMA （A =-C8H15O2, B = - C12 H23 O2 , x,y was their mol ratio）were prepared by bulk polymerization. The effects of different second ligands（ carbazole, dmbp, phen, HTTA） on the flourescent properties of the polymers were studied. Then AxByEu/HTTA/PMMA was prepared with ligand HTFA. The structures and fluorescence properties of the complexes and polymers containing europium were investigated by IR, UV and Fluorescence spectra. Results indicate that the polymers obtained emit strong characteristic luminescence of Eu^3＋ ions. Notably even if the mass fraction of HTTA was 0. 02%, it could enhance the characteristic red luminescence of （C8H15O2）3Eu/ HTTA/PMMA greatly, while the transparency of the polymer was not affected.

关 键 词：正辛酸 月桂酸 稀土铕 光致发光 聚合物 

分 类 号：O623.6[理学—有机化学] O631.3[理学—化学]