Preparation and characterization of polyaniline particles by various polymerization methods

Takayuki Ishii, Eisuke Nihei, Haruma Kawaguchi

Research output: Contribution to conferencePaperpeer-review


Conducting polymer particles were prepared by mini-emulsion polymerization. We used o-Toluidine as a monomer instead of aniline because of its low solubility for water. We used ammonium persulfate as an oxidant. And sodium dodecyl sulfate, cetyl alcohol, and polyvinylpyrrolidone were used as addition agents to get particles. We also prepared polyaniline particles by dispersion polymerization and polyaniline-polystyrene composite particles by seeded polymerization. Then we compared particles prepared by miniemulsion polymerization with particles prepared by dispersion polymerization or seeded polymerization. These polymer particles were characterized by electron microscope, FT-IR, conductivity measurement and so on. After doping of hydro chloride, a pellet of the poly(o-Toluidine) particles had a conductivity of 2.35×10-3S/cm.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005 Dec 1
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: 2005 May 252005 May 27


Other54th SPSJ Annual Meeting 2005


  • Conducting polymer
  • Mini-emulsion polymerization
  • Oxidative polymerization
  • Particle
  • Polyaniline
  • Seeded polymerization

ASJC Scopus subject areas

  • Engineering(all)


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