Studies on the solubility of bonded-rare earth complexes and fluorescence properties of their copolymers

摘要

A binary and ternary rare earth complexes were synthesized. The structure and composition of the complexes were characterized by FT-IR and Elemental Analyzer. It is found that the complexes have excellent fluorescence intensity and thermal stability. Photo luminescent measurements show that Phenanthroline (Phen) could efficiently transfer energy to Eu~(3+) and sensitize the luminescence of Eu~(3+). The copolymers of complexes, methyl methacrylate (MMA) and methacrylic acid (HMA) emit characteristic fluorescence of Eu~(3+). The fluorescence intensity enhanced with the complexes content increasing. But the apparent copolymers of Eu(AA)_3 have stronger luminous intensity than that of Eu(AA)_3 Phen under limit solubility because Phen reduces the content of solvable Eu~(3+) in the mixture of MMA and HMA.