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Design of New Reaction Fields for Spherical Polypyrrole Particle Synthesis
Author(s) -
Kobayashi Daisuke,
Endo Yuko,
Sakamoto Tadaaki,
Takahashi Tomoki,
Matsumoto Hideyuki,
Kuroda Chiaki,
Otake Katsuto,
Shono Atsushi
Publication year - 2013
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201200067
Subject(s) - polypyrrole , polymerization , monomer , materials science , chemical engineering , emulsion polymerization , aqueous solution , polymer , conductive polymer , particle (ecology) , nanoparticle , polymer chemistry , nanotechnology , chemistry , organic chemistry , composite material , oceanography , engineering , geology
Summary: Polypyrrole conducting polymers have been investigated widely for various applications because of their thermal and environmental stability and good electrical conductivity. Using chemical oxidative polymerization for the synthesis of polypyrrole particles, the reaction rate is very fast. In this study, we designed two new reaction fields for the synthesis of spherical polypyrrole nanoparticles. In the first system, oxidative polymerization of monomer droplets infused in a water/oil (W/O) emulsion reaction field was investigated. The second system employed dispersed monomer in an aqueous solution with a low concentration of oxidant in which polymerization was augmented by ultrasonic irradiation. Effective control of the reaction rate was important for enabling the synthesis of fine spherical polypyrrole particles.