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Covalently bonded assembly and photoluminescent properties of rare earth/silica/poly(methyl methacrylate-co-maleic anhydride) hybrid materials

Paper ID Volume ID Publish Year Pages File Format Full-Text
28012 44056 2008 7 PDF Available
Title
Covalently bonded assembly and photoluminescent properties of rare earth/silica/poly(methyl methacrylate-co-maleic anhydride) hybrid materials
Abstract

Copolymer (MMA-co-MAL) of methyl methacrylate (MMA) and maleic anhydride (MAL) was prepared and grafted by 3-aminopropyltriethoxysilane (APES), which behaves as the structural precursor for functional bridge to assemble the covalently bonded systems through the coordination to rare earth ions (Eu3+, Tb3+) with carboxylic groups of maleic anhydride. On the other hand, 1,10-phenanthroline (phen) is engaged in a second functional ligand to sensitize the luminescence of RE3+ (rare earth ions) by intramolecular energy transfer process. Meanwhile, the cohydrolysis and copolycondensation processes happened between triethoxysilyl of modified copolymer (MMA-co-MAL-APES) and tetraethoxysilane (TEOS) with Si–O covalent bonds, resulting in the polymer-inorganic hybrids (phen-RE-MMA MMA-co-MAL-Si) exhibiting characteristic red or green emissions of Eu or Tb ions. Especially the luminescent quantum efficiencies of europium hybrid systems are estimated and discussed in detail.

Keywords
Polymer hybrid material; Covalently bonded; Rare earth ion; Photoluminescence
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Covalently bonded assembly and photoluminescent properties of rare earth/silica/poly(methyl methacrylate-co-maleic anhydride) hybrid materials
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 197, Issues 2–3, 25 June 2008, Pages 213–219
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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