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Preparation and application of polystyrene‐grafted ZnO nanoparticles
Authors:R. Y. Hong  L. L. Chen  J. H. Li  H. Z. Li  Y. Zheng  J. Ding
Affiliation:1. Department of Chemical Engineering, Key Laboratory of Organic Synthesis of Jiangsu Province, Soochow University, Suzhou 215123, China;2. Key Laboratory of Multiphase Reaction, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, ChinaDepartment of Chemical Engineering, Key Laboratory of Organic Synthesis of Jiangsu Province, Soochow University, Suzhou 215123, China.;3. Key Laboratory of Multiphase Reaction, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China;4. Department of Chemical Engineering, University of New Brunswick, Fredericton, N.B., E3B 5A3, Canada;5. IBM, HYDA/050‐3 C202, 3605 Highway 52 North, Rochester, MN 55901, USA
Abstract:The precursor of ZnO was prepared by precipitation and ZnO nanoparticles were obtained by calcination afterwards. Poly(styrene) (PSt) was grafted onto the ZnO nanoparticles in a non‐aqueous suspension to reduce the aggregation among nanoparticles and to improve the compatibility between nanoparticles and the organic matter. The obtained samples were characterized by X‐ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT‐IR), zeta potential measurement, lipophilic degree (LD) test, photocatalytic experiments, sedimentation test, and contact angle measurement. The LD of composite particles after a high‐temperature treatment was stable. The photoluminescence of PSt‐grafted ZnO nanoparticles was observed by naked eyes and was recorded using a digital camera. The ZnO nanoparticles were used to reinforce poly(vinylidene fluoride) (PVDF) films and the mechanical and electric properties of the films were also measured. Copyright © 2007 John Wiley & Sons, Ltd.
Keywords:composite nanoparticles  ZnO  surface modification  graft polymerization
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