Organic solvent dispersion of poly(3,4-ethylenedioxythiophene) with the use of polymeric ionic liquid

Tae Young Kim, Tae Hee Lee, Jonc Eun Kim, Rajeswari M. Kasi, Chong S.P. Sung, Kwang S. Suh

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

A nonaqueous dispersion of poly(3,4-ethylenedioxythiophene) (PEDOT) was prepared with the use of polymeric ionic liquid (PIL) as a polymerization template and phase transfer medium. A detailed investigation was performed to understand the role of PIL in the course of polymerization and phase transfer reaction. On the basis of our findings from X-ray photoelectric spectroscopy (XPS), we propose a mechanism by which the PIL leads to the nanostructured PEDOT colloids in various organic solvents and thus facilitating smoother surface morphologies of the PEDOT-PIL films. In addition, the enhancement of charge transport was observed for PEDOT-PIL complex when compared with PEDOT without PIL. Raman spectroscopy indicates that there is a reduced interaction between the charge carriers on the PEDOT and the counter ions bound to PIL, thus promoting charge carrier hopping rates.

Original languageEnglish
Pages (from-to)6872-6879
Number of pages8
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume46
Issue number20
DOIs
Publication statusPublished - 2008 Oct 15

Keywords

  • Conducting polymers
  • Dispersions
  • Nanoparticles
  • Poly(3,4- ethylenedioxythiophene)
  • Polymeric ionic liquids

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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