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Structure of micelles formed by highly asymmetric polystyrene-b-polydimethylsiloxane and polystyrene-b-poly[5-(N,N-diethylamino)isoprene] diblock copolymers
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SYSNO ASEP 0348142 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Structure of micelles formed by highly asymmetric polystyrene-b-polydimethylsiloxane and polystyrene-b-poly[5-(N,N-diethylamino)isoprene] diblock copolymers Author(s) Giacomelli, F. C. (BR)
Riegel, I. C. (BR)
Štěpánek, Petr (UMCH-V) RID, ORCID
Petzhold, C. L. (BR)
Ninago, M. D. (AR)
Satti, A. J. (AR)
Ciolino, A. E. (AR)
Villar, M. A. (AR)
Schmidt, V. (BR)
Giacomelli, C. (BR)Source Title Langmuir. - : American Chemical Society - ISSN 0743-7463
Roč. 26, č. 18 (2010), s. 14494-14501Number of pages 8 s. Language eng - English Country US - United States Keywords dynamic light-scattering ; block-copolymers ; selective solvent Subject RIV BO - Biophysics R&D Projects GA202/09/2078 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000281690600019 DOI 10.1021/la1024372 Annotation 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. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2011
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