Citation:
HU Zhen, LIN Mei-Juan. (C8H15O2)x(C12H23O2)yEu/PMMA Luminescent Material[J]. Chinese Journal of Applied Chemistry,
;2009, 26(6): 646-650.
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New europium complexes(C8H15O2)x(C12H23O2)yEu,which is soluble in MMA monomer,were synthesized with caprytlic acid(C8H15O2) and lauric acid(C12H23O2) as the first ligand by saponification method.Photoluminescent PMMA containing rare earth complexes AxByEu/PMMA(A=—C8H15O2,B=—C12H23O2,x,y was their mol ratio) were prepared by bulk polymerization.The effects of different second ligands(carbazole,dmbp,phen,HTTA) on the flourescent properties of the polymers were studied.Then AxByEu/HTTA/PMMA was prepared with ligand HTTA.The structures and fluorescence properties of the complexes and polymers containing europium were investigated by IR,UV and Fluorescence spectra.Results indicate that the polymers obtained emit strong characteristic luminescence of Eu3+ ions.Notably even if the mass fraction of HTTA was 0.02%,it could enhance the characteristic red luminescence of(C8H15O2)3Eu/HTTA/PMMA greatly,while the transparency of the polymer was not affected.
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Keywords:
- caprylic acid,
- lauric acid,
- rare earth europium,
- luminescence,
- polymer
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