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Novel Rare Earth–Polyvinyl Pyridine Complex Functionalized Hybrid Silica Microspheres: Molecular Assembly and Photophysical Property
Author(s) -
Guo Lei,
Yan Bing
Publication year - 2010
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.2010.00789.x
Subject(s) - microsphere , pyridine , rare earth , chemistry , polymer chemistry , chemical engineering , materials science , organic chemistry , mineralogy , engineering
The functional silica microspheres are derived from the three different silane crosslinking reagents, and then the polyvinyl pyridine‐based rare earth hybrids are synthesized through free radical copolymerization of rare earth–vinyl pyridine complex monomer with these functionalized silica microspheres (RE = Eu, Tb). The obtained hybrids are characterized by Fourier transform infrared, X‐ray diffraction, Scanning electronic microscope and photoluminescence spectra. The intramolecular energy transfer process between rare earth ions and polymer polyvinyl pyrrolidone matrices took place within these polymer‐based hybrids and especially the quantum efficiency of europium hybrids are determined, suggesting that the hybrid material systems derived from different functional silica microspheres present different luminescence efficiencies.