Preparation and morphology characterization of core-shell water-dispersible polystyrene/poly(3,4-ethylenedioxythiophene) microparticles

Aleksei V. Kubarkov, Svetlana A. Lipovskikh, Olga A. Pyshkina, Evgeny A. Karpushkin, Keith J. Stevenson, Vladimir G. Sergeyev

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Ultrafine electrically conductive microparticles have been prepared by in situ oxidative polymerization of 3,4-ethylenedioxythiophene in the presence of sulfonated polystyrene latex beads either in water or in an aqueous solution of poly(4-styrenesulfonic) or 4-toluenesulfonic acid. The particles consist of polystyrene core and continuous poly(3,4-ethylenedioxythiophene) shell which incorporate different counter-ions derived from the oxidant or the sulfonic acid. The presence of poly(4-styrenesulfonic acid) in the polymerization medium enhances the electrical conductivity of the resulting particles by up to two orders of magnitude. The particles prepared in the presence of poly(4-styrenesulfonic acid) exhibit smooth surface morphology and high colloidal stability, while these prepared in the presence of 4-toluenesulfonic acid or in the absence of sulfonic acid show rough sponge-like morphology and do not form stable dispersions.

Original languageEnglish
Pages (from-to)737-744
Number of pages8
JournalColloid and Polymer Science
Volume296
Issue number4
DOIs
Publication statusPublished - 1 Apr 2018

Keywords

  • Core-shell particles
  • Dispersions
  • Electrical conductivity
  • Microparticles
  • Morphology
  • PEDOT

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