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通过4-氰基-4-乙基三硫代戊酸卞基酯(RAFT)聚合的方法合成具有亲水段和疏水段的嵌段聚合物PS-bPAA。以该两嵌段聚合物、氧化铕、邻菲罗啉、盐酸为原料制备聚合物稀土络合物。由于嵌段聚合物具有亲水段和疏水段,所以在二甲基甲酰胺(DMF)溶剂中,该络合物会形成分散性均一的核壳结构的球形纳米胶束。研究在稀土配合物中聚合物和小分子配体1,10-邻菲罗啉(phen)对Eu~(3+)荧光性能的影响,当PS的聚合度为23,PAA的聚合度为17时,可成功制备出直径30~50nm的纳米胶束,可应用于太阳能电池领域,对稀土在太阳能电池中的应用具有重要意义。
The block polymer PS-bPAA having a hydrophilic segment and a hydrophobic segment was synthesized by polymerizing 4-cyano-4-ethylbenzyldithiopentanoate (RAFT). Using the diblock polymer, europium oxide, phenanthroline and hydrochloric acid as raw materials, a polymer rare earth complex was prepared. Since the block polymer has a hydrophilic segment and a hydrophobic segment, the complex will form spherical nanomicelles with uniform dispersion of core-shell structure in dimethylformamide (DMF) solvent. The effects of polymer and small molecule ligand 1,10-phenanthroline (phen) on the fluorescence properties of Eu ~ (3+) in rare earth complexes were studied. When the degree of polymerization of PS was 23 and the degree of polymerization of PAA was 17 , Nanometer micelles with a diameter of 30-50nm can be successfully prepared, which can be applied to the field of solar cells and is of great significance to the application of rare earths in solar cells.