Počet záznamů: 1

Polymeric nanoparticles stabilized by surfactants investigated by light scattering, small-angle neutron scattering, and Cryo-TEM methods

  1. 1.
    0359807 - UMCH-V 2012 RIV US eng J - Článek v odborném periodiku
    Pánek, Jiří - Filippov, Sergey K. - Koňák, Čestmír - Nallet, F. - Noirez, L. - Karlsson, G. - Štěpánek, Petr
    Polymeric nanoparticles stabilized by surfactants investigated by light scattering, small-angle neutron scattering, and Cryo-TEM methods.
    Journal of Dispersion Science and Technology. Roč. 32, č. 6 (2011), s. 888-897 ISSN 0193-2691
    Grant CEP: GA ČR GA202/09/2078
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: Cryo-TEM * DLS * nanoparticles
    Kód oboru RIV: BO - Biofyzika
    Impakt faktor: 0.560, rok: 2011

    We investigated self-organization of polymers with surfactants through solvent shifting process resulting in formation of stable and uniform nanoparticles. We studied polymeric nanoparticles made of poly(methylmethacrylate) and of polystyrene dispersed in water. We observed the formation of well defined nanoparticles by light scattering, small-angle neutron scattering (SANS), and cryogenic transmission electron microscopy (Cryo-TEM) methods. The study shows how nanoparticle properties are changed by the chemical composition of surfactants, molar mass of polymers, concentrations of both components. Dynamic light scattering (DLS) and static light scattering (SLS) provide the hydrodynamic radii and radii of gyration, cryo-TEM experiments prove that the nanoparticles have good spherical shape. Analysis of SANS data and cryo-TEM micrographs suggest that the prepared particles are composed of polymer and surfactant that are evenly distributed.
    Trvalý link: http://hdl.handle.net/11104/0197519