【作者】 崔玉明；

【导师】 杨瑛；

【作者基本信息】 兰州大学 ， 无机化学， 2006， 硕士

【副题名】苯乙烯/丙烯酸与苯乙烯/马来酸单苯酯共聚物及其稀土配合物的合成、表征及性质研究

【摘要】 本论文研究了苯乙烯/丙烯酸共聚物(PStAA)和苯乙烯/马来酸单苯酯共聚物(PStMM),以及它们与稀土所形成高分子化合物的合成、表征及发光性质。 论文分为以下二个部分: 1.对金属高分子配合物(Metal Macromolecular Complex,缩写为MMC)的研究进展及应用作了简要的文献综述。 2.合成了系列高分子配体苯乙烯/丙烯酸共聚物(L_i~1)和苯乙烯/马来酸单苯酯共聚物(L_i~2)并制成相应的稀土高分子配合物RE-PStAA和RE-PStMM,并对所得配体和配合物进行了表征。其中,L_i~1、L_i~2的阴离子结构分别为: RE-L_i~1和RE-L_i~2稀土化合物的结构单元示意图分别如下图所示:更多还原

【Abstract】 The syntheses and characterization of two copolymeric ligands of acrylic acid and monophenyl maleate with styrene and their RE(Ⅲ) complexes have been studied in this thesis, and a detailed investigation on the properties of macromolecular complexes with rare earth metals has been carried out as well.This paper consists of two parts as follows:1. A brief review of the study for metal macromolecular complexes(MMC) has been given.2. Two copolymers of acrylic acid and monophenyl maleate with styrene and their compounds with rare earth nitrates have been synthesized and characterized. The schemes of Li1 and Li2 anions are showed as follows:The schemes of RE-Li1 and RE-Li2 are showed respectively as follows:(RE= Eu, Tb)The carboxylic groups coordinated to rare earth ions in structure units could be in the same chain or not.These compounds have been studied by means of elemental analysis, thermal analysis, x-ray powder diffraction and IR spectra, and the fluorescence properties of them also determined. The results show that RE-PStAA and RE-PStMM are three-dimensional cross-linked macromolecules. All of them are structurally specific, insoluble in most organic solvents, thermally stable and emit intense characteristic fluorescence of rare earth metal ions and their fluorescence intensities were greatly enhanced with increasing the content of lanthanide in complexes. X-ray diffraction findings indicate that although the polymeric ligands are amorphous, but some of their macromolecular lanthanide complexes are crystalline, of which Eu-L32 belongs to a highly symmetric structure of orthorhombic quadratic system, with a =10.59±0.02 A, c =8.02 + 0.01 A;c/a=0.763.更多还原