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美國(guó)布魯克海文儀器公司>技術(shù)文章>Nanobrook Omni測(cè)量應(yīng)用案例-24

技術(shù)文章

Nanobrook Omni測(cè)量應(yīng)用案例-24

閱讀:416          發(fā)布時(shí)間:2018-6-21
 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. Stevenson1,2, 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.

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