CRCU

Chemical Research in Chinese Universities ›› 2002, Vol. 18 ›› Issue (1): 75-78.

• Articles • Previous Articles     Next Articles

UV-Vis and Surface Photovoltage Spectra of Fe2O3/Polystyrene Composite Microspheres

QIAN Xin-ming1, ZHANG Xin-tong2, SHAO Hui-bo3, BAI Yu-bai2, LI Tie-jin2, TANG Xin-yi2, DONG Shao-jun1   

  1. 1. Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China;
    2. Department of Chemistry, Jilin University, Changchun 130023, P. R. China;
    3. Department of Chemistry, Capital Normal University, Beijing 100037, P. R. China
  • Received:2000-09-13 Online:2002-01-24 Published:2011-08-04
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.29973026 and 20075028), K. C. Wang Post-Doctoral Research Award Fund of Chinese Academy of Sciences, and China Postdoctoral Science Foundation.

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Abstract: Fe2O3 sol with the particle diameter of 3-5 nm was flocculated by the addition of SDS, and the flocculate formed was redispersed by the further addition of that surfactant. Thus the surfactant bilayer was formed on the surface of Fe2O3. The emulsion polymerization of styrene(St) adsolubilized on the surfactant adsorbed bilayer was carried out by initiator potassium persulfate(KPS). The UV-Vis and surface photovoltage spectra(SPS) indicate that the Fe2O3 particles were encapsulated in polystyrene(PSt) successfully.

Key words: Fe2O3 nanoparticles, Encapsulation, Composite microspheres