An electrically-conductive composite prepared by electrochemical polymerization of pyrrole into polyurethane

A study of the electrochemical preparation of conductive composite films from polypyrrole and non-conducting polyurethane resin is presented

Xiantong Bi; Qibing Pei

2003

Scholarcy highlights

  • A study of the electrochemical preparation of conductive composite films from polypyrrole and non-conducting polyurethane resin is presented
  • Pyrrole and dopants can penetrate through a polyurethane substrate and electropolymerize on the Pt surface due to the swelling of the coating by the electrolyte solution
  • Cyclic voltammograms show that the diffusion process in polyurethane is inhibited for larger anions
  • The electrical conductivity of the composites falls in the range 1–35 S/cm and is influenced by the electropolymerization conditions
  • The mechanical properties of the composites resemble those of pure polyurethane
  • FT infrared spectra and other experiments indicate that polypyrrole is dispersed in the polyurethane matrix like a net with unusually thickset ‘knots’

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