CHEMICALLY FUNCTIONALIZED ELECTROSPUN DISPERSION FIBRES FOR LAYER-BY-LAYER COATINGS

摘要

The present invention provides a process for producing dispersion fibres having covalently bound ionically charged groups. Here, one or two aqueous dispersions of polymer latex particles containing covalently bound ionic groups are mixed with a water-soluble polymer and electrospun. The polymer particles have diameters less than or equal to 200 nm. The electrospinning can be carried out using a single spinning nozzle or parallel and/or layerwise. Crosslinkable particles can optionally be used. Furthermore, dispersion fibres which can be obtained by the process of the invention are provided. The fibres can optionally be crosslinked before, during or after electrospinning, if crosslinkable particles have been used. The dispersion fibres can be used for coating with materials bearing the opposite charge in layer-by-layer processes, in catalysis, in sensor technology, as indicators, in active compound liberation, as antibacterial materials, in photovoltaics and filtration.