Počet záznamů: 1

Structure of micelles formed by highly asymmetric polystyrene-b-polydimethylsiloxane and polystyrene-b-poly[5-(N,N-diethylamino)isoprene] diblock copolymers

  1. 1.
    0348142 - UMCH-V 2011 RIV US eng J - Článek v odborném periodiku
    Giacomelli, F. C. - Riegel, I. C. - Štěpánek, Petr - Petzhold, C. L. - Ninago, M. D. - Satti, A. J. - Ciolino, A. E. - Villar, M. A. - Schmidt, V. - Giacomelli, C.
    Structure of micelles formed by highly asymmetric polystyrene-b-polydimethylsiloxane and polystyrene-b-poly[5-(N,N-diethylamino)isoprene] diblock copolymers.
    Langmuir. Roč. 26, č. 18 (2010), s. 14494-14501 ISSN 0743-7463
    Grant CEP: GA ČR GA202/09/2078
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: dynamic light-scattering * block-copolymers * selective solvent
    Kód oboru RIV: BO - Biofyzika
    Impakt faktor: 4.269, rok: 2010

    The internal structure of polystyrene(PS)-shell micelles having core-forming blocks consisting of polydimethylsiloxane (PDMS) or poly[5-(N,N-diethylamino)isoprene] (PAI) was determined in detail by accessing the multilevel structural organization using static and dynamic light scattering and small-angle X-ray scattering techniques. Colloidal nanoparticles exhibiting either swollen core with a large surface area per corona chain that enables the PS chains to assume a random coil conformation with Gaussian statistics, or compact core and slightly stretched PS chains in the corona were obtained. Therefore, the results of this study provide an interesting alternative allowing for precise control of the core and corona properties of micelles in selective solvents.
    Trvalý link: http://hdl.handle.net/11104/0006039