Electroless surface polymerization of ordered conducting polyaniline films on aniline-primed substrates

C. G. Wu, Y. R. Yeh, J. Y. Chen, Y. H. Chiou

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

Ordered conducting polyaniline films were obtained by electroless surface polymerization of aniline molecules on C6H5NHC3H6Si(OMe)3-mod ified substrates. Dense, smooth and strongly adhered films with thickness in the range of 50 nm to 1 μm were isolated. The polymer films were in their conducting state and were homogeneously doped. Complete protonating/deprotonating of polyaniline films took only several seconds, and this process could be repeated several times without affecting the adhesion and conductivity of the polymer films. Infrared, X-ray diffractometer and transmission electron microscopy data revealed the ordering of polyaniline chains, which have the domain size of a couple of hundred angstroms. The room temperature conductivity of the 1 μm polyaniline film was 0.5 S/cm. These polymer films were very stable, their conductivities did not change even after staying in ambient atmosphere for 4 months.

Original languageEnglish
Pages (from-to)2877-2885
Number of pages9
JournalPolymer
Volume42
Issue number7
DOIs
StatePublished - 2001

Keywords

  • Electroless surface polymerization
  • Ordered conducting films
  • Polyaniline

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