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

 

作者：     Aleksei V. Kubarkov¹, authorSvetlana A. Lipovskikh², Olga A. Pyshkina¹, Evgeny A. Karpushkin¹, Keith J. Stevenson^1,2, Vladimir G. Sergeyev¹

    1.Faculty of ChemistryLomonosov Moscow State UniversityMoscowRussia

    2.Skolkovo Institute of Science and TechnologyMoscowRussia

 

摘要：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.