Macromolecular Research

  • 제15권5호
  • /
  • Pages.403-411
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  • 2007
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  • 1598-5032(pISSN)
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  • 2092-7673(eISSN)
한국고분자학회 (The Polymer Society of Korea)
권호 표지

Electrolyte Effect on the Particle Characteristics Prepared by Soap-Free Emulsion Polymerization

  • Han, Seung-Tak (Department of Chemical Engineering, Inha University) ;
  • Lee, Kang-Seok (Department of Chemical Engineering, Inha University) ;
  • Shim, Sang-Eun (Department of Chemical Engineering, Inha University) ;
  • Saikia, Prakash J. (Department of Chemical Engineering, Inha University) ;
  • Choe, Soon-Ja (Department of Chemical Engineering, Inha University) ;
  • Cheong, In-Woo (Department of Applied Chemistry, Kyungpook National University)
  • 발행 : 2007.08.31
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초록

Monodisperse micron-sized polystyrene (PS) spheres were successfully obtained using a single stage soap-free emulsion method in aqueous media mixed with ethanol (co-solvent) containing NaCI as the electrolyte. The optimum conditions for preparing the monodisperse PS microspheres, using soap-free emulsion polymerization in a water/ethanol mixture with an electrolyte, were studied. The presence of the co-solvent and electrolyte controlled the particle dispersion stability during the polymerization. The microspheres formed using PS, with a weight-average diameter of $2.6{\mu}m$, coefficient of variation of 5.3% and zeta potential of -15.1 eV, were successfully obtained in the presence of 0.1 wt% NaCI, 10 wt% monomer, 0.1 wt% initiator and 95/5 (g/g) of a water/ethanol mixture reacted at $70^{\circ}C$ for 24 h.

키워드

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