Amic acid doping of polyaniline: Characterization and resulting blends

M. Angelopoulos, N. Patel, R. Saraf

Research output: Contribution to journalConference article

31 Scopus citations


Amic acids are found to be dopants for polyaniline (Pani). In particular, polyamic acids, the precursors to polyimides, react with Pani to form an all-polymer conducting matrix composed of protonated Pani and the polyamate counteranion. The acid/base interaction provides the driving force for molecular miscibility. The doping reaction is probed further by using a model system based on a monomeric diamic acid. It is found that the conductivity in the all-polymer matrix is limited by geometric constraints between the two polymers. Upon imidization of the Pani/polyamic acid blend, the doping reaction is reversed resulting in a non-conducting Pani/polyimide blend. However, the miscibility between the two polymers is still retained forming a `frustrated' blend in which the two polymers are frozen into a homogeneous, non-equilibrium state unable to phase separate as a result of physical restrictions.

Original languageEnglish (US)
Pages (from-to)1552-1557
Number of pages6
JournalSynthetic Metals
Issue number2 -3 pt 2
StatePublished - Jan 1 1993
EventProceedings of the International Conference on Science and Technology of Metals - ICSM'92 - Goteborg, Swed
Duration: Aug 12 1992Aug 18 1992

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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    Angelopoulos, M., Patel, N., & Saraf, R. (1993). Amic acid doping of polyaniline: Characterization and resulting blends. Synthetic Metals, 55(2 -3 pt 2), 1552-1557.