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Preparation of Colored Electrophoretic Nanoparticles by Emusifier-Free Emulsion Polymerization and Reactive Dyeing  

Chon, Jin-A (Department of Polymer Science and Engineering, Inha University)
Ha, Jae-Hee (Department of Polymer Science and Engineering, Inha University)
Lim, Min-Ho (Department of Polymer Science and Engineering, Inha University)
Kwon, Yong-Ku (Department of Polymer Science and Engineering, Inha University)
Publication Information
Polymer(Korea) / v.34, no.6, 2010 , pp. 491-494 More about this Journal
Abstract
Colored, electrophoretic polymer nanoparticles of poly (styrene-co-divinylbenzene-co-vinyl acetate)[poly(St-co-DVB-co-VAc)] were prepared by emulsifier-free emulsion co-polymerization and reactive dyeing. The emulsifier-free emulsion polymerization of styrene, divinyl benzene and vinyl acetate was carried out at $70^{\circ}C$ for 20 hrs to obtain monodisperse polymer nanoparticles of poly(St-co-DVB-co-VAc) with an average diameter of 180~200 nm. These nanoparticles were transformed into poly(styrene-co-divinylbenzene-co-vinyl alcohol) [poly(St-co-DVB-co-VA)] nanoparticles through the saponification reaction. The poly(St-co-DVB-co-VA) nanoparticles were treated with reactive dyes to obtain the colored, monodisperse electrophoretic nanoparticles, and their morphology and surface charge were characterized by scanning electron microscopy, differential scanning calorimetry, UV/Vis absorbance and zeta-potentiometry.
Keywords
poly(styrene-co-divinylbenzene-co-vinyl acetate); nanoparticles; saponification; emulsifier-free emulsion polymerization;
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