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Journal of Nanomaterials
Volume 2013, Article ID 751497, 8 pages
Research Article

Fabrication of Polystyrene/Detonation Nanographite Composite Microspheres with the Core/Shell Structure via Pickering Emulsion Polymerization

1College of Automation, Xi’an Institute of Post and Telecommunication, Xi’ans 710121, China
2College of Environmental Science and Engineering, Chang’an University, Xi’an 710054, China

Received 20 June 2013; Revised 23 July 2013; Accepted 27 July 2013

Academic Editor: Mengnan Qu

Copyright © 2013 Hou Xuemei and Ying Hao. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Polystyrene microspheres coated with detonation nanographite particles have been prepared by Pickering emulsion polymerization using azobisisobutylonitrile (AIBN) as initiator in aqueous solutions. In the present techniques, the pristine detonation nano-graphite particles were employed as stabilizer of Pickering emulsion and then were armored on the as-prepared polystyrene cores by the thermal polymerization. The composite microspheres of polystyrene/detonation nano-graphite (PS/DNG) were characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), thermogravimetric and differential thermal analysis (TGA-DTA), and Fourier transformation infrared spectrum (FT-IR). FE-SEM indicates that the resulting samples retain spherical shape, with the uniform size ranging from 100 to 150 μm and good dispersity. FT-IR presents the possible formation mechanisms of PS/DNG composites. The functional groups on the surface of polystyrene and modified detonation nano-graphite particles have played an important role for the formation of PS/DNG composites. Moreover, the wettability of different nano-graphite was also tested.