Abstract
The copolymer (PAAAB) of acrylic acid (AA) and N-acryloyl- p-aminobenzoic acid (AAB) was prepared by polymeric reaction. The fluorescence properties of the Eu 3+ -PAAAB complex were investigated. The fluorescence intensity of Eu 3+ in the Eu 3+ -PAAAB complex is strongest when the Eu 3+ content in the system is 8.0 wt.%, and exhibits concentration quenching with a further increase in Eu 3+ content. the fluorescence properties of the bimetallic complexes Eu 3+ -copolymer-M (M = Sr 2+, Co 2+, Tb 3+, Gd 3+, Nd 3+, Dy 3+, Er 3+) were also investigated in detail. Energy transfer occurs between the ions of the systems, i.e. from Gd 3+ or Tb 3+ to Eu 3+ and from Eu 3+ to Sr 2+, Co 2+, Nd 3+, Dy 3+ or Er 3+. The fluorescence are increased significantly in Eu 3+ -copolymer-Gd 3+ and Eu 3+ -copolymer-Tb 3+ systems and decreased in the other bimetallic systems.
Published Version
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