The present invention relates to a process for preparing poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) particles at least comprising the steps: a) providing a mixture comprising poly(3,4-ethylenedioxythiophene) and polystyrene sulfonate in a solvent at least comprising water; b) forming one or more PEDOT:PSS droplets by introducing the mixture from process step a) into an organic solvent A, wherein the aqueous PEDOT:PSS mixture forms the droplet interior and the organic solvent A forms the droplet exterior; c) contacting the PEDOT:PSS droplets obtained from process step b) with a coagulating solution comprising a curing agent and at least one further solvent B, the density of the coagulating solution being greater than the density of the organic solvent A and less than the density of the aqueous poly(3,4-ethylenedioxythiophene) and polystyrene sulfonate mixture; with curing of the PEDOT:PSS droplets to PEDOT:PSS particles. Furthermore, the present invention discloses spherical PEDOT:PSS particles without further mechanically solidifying substances and the use of the particles, for example, as cell culture microcarriers or suspension electrodes.

The present invention relates to electrically conductive nanocomposite particles comprising: a core consisting of a poly-C1-C6-alkyl-acrylate homopolymer or of a C1-C6 alkyl acrylate copolymer and an α,β-unsaturated amide comonomer, a shell comprising a conductive polymer and a nonionic surfactant. The invention also relates to a process for the preparation of such particles, as well as their use for producing a print on a stretchable support.

The present invention provides a composite material having excellent dispersibility in a solvent and increased conductivity. The composite material comprises a carbon material and a conductive dispersant physically or chemically bonded to the carbon material, the conductive dispersant is constituted by a conductive polymer, and the conductive polymer has a number average molecular weight of 2000 or more and 100000 or less.

The present invention provides a method for producing a conductive polymer-containing dispersion, including: a polymerization step of polymerizing a monomer for obtaining a conjugated conductive polymer in a dispersion medium including the monomer and seed particles converted into a colloid protected by a polyanion.