Amic acid doping of polyaniline: Characterization and resulting blends

M. Angelopoulos, N. Patel, R. Saraf

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

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
Volume55
Issue number2-3
DOIs
StatePublished - Mar 22 1993

Fingerprint

Polyaniline
Doping (additives)
acids
Acids
Polymers
polymers
polyimides
Polyimides
solubility
Solubility
Conducting polymers
conducting polymers
Polymer blends
matrices
Polymer matrix
constrictions
polyaniline
conductivity
interactions
polyamic acid

ASJC Scopus subject areas

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

Cite this

Amic acid doping of polyaniline : Characterization and resulting blends. / Angelopoulos, M.; Patel, N.; Saraf, R.

In: Synthetic Metals, Vol. 55, No. 2-3, 22.03.1993, p. 1552-1557.

Research output: Contribution to journalArticle

Angelopoulos, M. ; Patel, N. ; Saraf, R. / Amic acid doping of polyaniline : Characterization and resulting blends. In: Synthetic Metals. 1993 ; Vol. 55, No. 2-3. pp. 1552-1557.
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