Enhancement of the luminescence of europium(III) #beta#-diketonates in the ligand series #beta#diketones-their unsaturated analogues-copolymers

摘要

A change in the luminescence intensity of europium compounds was studied for the series of ligands #beta#-diketones-their unsaturated analogues (monomers)-copolymers with styrene (methyl methacrylate). The optimal ratios of comonomers (1:2;1:5) providing the maximum luminescence intensity of europium were determined. Europium (n x 10~(-3)%) was determined in Ce, Pr, Nd, and Ho oxides, which are strong luminescence quenchers, using copolymers containing trifluoroacetylacetone and benzoylacetone.