利用聚对苯二甲酰氯对聚乙二醇端基进行改性,制备出了聚乙二醇端基活化产物PEG-PTC,然后将其作为配体,通过化学键连接上功能性的发光基团(发光基团的构成主要以稀土铕为中心),合成了带有新型配体PEG-PTC的和1,10-邻菲啰啉的稀土铕-聚乙二醇型配合物.通过配体、配合物的红外光谱、DSC、TG等的测试,对其组成、结构和性能进行分析.结果表明,合有新型配体PEG-PTC的稀土铕-聚乙二醇型的配合物不仅具有相变功能,同时具有优异的荧光特性,新型配体与稀土离子的激发态能级间具有较好的能级匹配,并且具有良好的热稳定性.
A novel active end-group of PEG- TPC was prepared via the end-groups of polyethylene glycol (PEG) modified by terephthaloyl chloride (TPC). And then, PEG-TPC as a ligand linked up to functional light-emitting group through chemical bond, and rare-earth europium (Eu~(3+)) is the main component of the luminescence group to pose. Finally, the complex of Eu- PEG were synthesized with novel ligands (PEG-TPC) and 1, 10- phenanthroline. The composition, structure and properties of the novel phase change luminescence polymer materials were characterized through the Fourier transform infrared spectrum(FT-IR), differential scanning calorimetry (DSC), thermogravimetry analysis(TG) and other means of testing of the ligand and complex. The results show that the complexes of Eu-PEG with new ligand (PEG-PTC) have phase change properties, and excellent luminescent property. Energy levels between the excited state of new ligand and the rare earth ion have a good energy level matching, and have excellent thermal stability.
参考文献
| [1] | Wei-Dong Li;En-Yong Ding .Preparation and characterization of cross-linking PEG/MDI/PE copolymer as solid–solid phase change heat storage material[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2007(9):764-768. |
| [2] | 郭元强,吕社辉,叶四化,何涛,陈鸣才.聚乙二醇-纤维素接枝物固态相变材料的贮热性能[J].高分子材料科学与工程,2005(01):176-179. |
| [3] | Krupa I;Mikova G;Luyt AS .Phase change materials based on low-density polyethylene/paraffin wax blends[J].European Polymer Journal,2007(11):4695-4705. |
| [4] | 顾晓华,西鹏,沈新元.一种添加蛋白石的固-固相变储能材料的制备及表征[J].高分子材料科学与工程,2008(01):135-138. |
| [5] | Xi P;Gu XH;Chen CF;He YX;Huang XA .Synthesis, characterization and luminescent properties of new highly luminescent organic ligand and complexes of trivalent rare earth[J].Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy,2007(3):667-671. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%