Emulsifier-free emulsion polymerization produces highly charged, monodisperse particles for near infrared photonic crystals

被引：112
|
作者：
Reese, CE [1 ]
Asher, SA [1 ]
机构：
[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2002年 / 248卷 / 01期
基金：
美国国家科学基金会;
关键词：
poly[styrene-(co-2-hydroxyethyl methacrylate); colloid; latex; emulifier-free emulsion polymerization; monodisperse; CCA; photonic crystals; near infrared; wavelength filter;
D O I：
10.1006/jcis.2001.8193
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We have developed emulsifier-free, emulsion polymerization recipes for the synthesis of highly charged, monodisperse latex particles of diameters between 500 and 1100 run. These latexes consist of poly[styrene-(co-2-hydroxyethyl methacrylate)] spherical particles whose surfaces are functionalized with sulfate and carboxylic acid groups. These highly charged, monodisperse particles readily self-assemble into robust, three-dimensionally ordered crystalline colloidal array photonic crystals that Bragg diffract light in the near infrared spectral region. By altering the particle number density, the diffraction wavelength can be tuned from similar to1000 to 4000 nm. (C) 2002 Elsevier Science (USA).
引用
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页码：41 / 46
页数：6
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