Synthesis of tailored core-brush polymer particles via a living radical polymerization and architecture of colloidal crystals

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Title:	Synthesis of tailored core-brush polymer particles via a living radical polymerization and architecture of colloidal crystals
Authors:	Ishizu,K;Amir,I;Okamoto,N;Uchida,S;Ozawa,M;Chen,H
Contributors:	化學工程與材料工程學系
Keywords:	ORDERED CUBIC LATTICES;SILICA PARTICLES;PHOTONIC CRYSTAL;SUPERSTRUCTURES;QUALITY;COLOR;FILMS
Date:	2011
Issue Date:	2012-03-27 16:27:52 (UTC+8)
Publisher:	國立中央大學
Abstract:	Narrow disperse core-brush polymer nanoparticles (BP) were synthesized by grafting from photo-induced atom transfer radical polymerization (ATRP) of 2-hydroxyethyl methacrylate (HEMA) from N,N-diethyldithiocarbamate (DC) groups of core-shell particle surface. We constructed colloidal crystals of these particles by depositing on glass substrate. By variation of the particle size, the brilliant color could be varied throughout the visible spectrum. We locked also permanently such colloidal crystals by cross-linking of poly(2-hydroxyethyl methacrylate) (PHEMA) brush phases with glutaraldehyde. The peak wavelength (lambda(max)) in the reflection spectra agreed well with the bandgap position for light incident on the (1 1 1) face of face-centered cubic (fcc) lattice according to Bragg's law. (C) 2010 Elsevier Inc. All rights reserved.
Relation:	JOURNAL OF COLLOID AND INTERFACE SCIENCE
Appears in Collections:	[Department of Chemical and Materials Engineering] journal & Dissertation

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