Rare earth functionalized polymers

Hydroxo- and amino-substituted aromatic carboxylates and co-cordinated β-diketonates of terbium have been immobilized by embedding into polyurethane matrices. Both, incorporation as molecular dissolutions and backbone supported species yield transparent composite materials with fair quantum yields o...

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Bibliographic Details
Published in:Journal of alloys and compounds 2008-02, Vol.451 (1), p.530-533
Main Authors: Hilder, M., Junk, P.C., Lezhnina, M.M., Warzala, M., Kynast, U.H.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Luminescence
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Photoluminescence
Physics
Polyurethane composites
Rare earth complexes
Solid organic materials
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Summary:Hydroxo- and amino-substituted aromatic carboxylates and co-cordinated β-diketonates of terbium have been immobilized by embedding into polyurethane matrices. Both, incorporation as molecular dissolutions and backbone supported species yield transparent composite materials with fair quantum yields of typically 20%; yet higher efficiencies are possible, if the complexes’ capability to act as crosslinkers is exploited. However, the resulting ‘concentrated’ systems could as yet not be obtained as transparent materials. The present report focusses on the optical properties of o-hydroxybenzoates (salicylates), which, considering applicational aspects as well, proved to be of high potential.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2007.04.114