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Wormlike core-shell nanoparticles formed by co-assembly of double hydrophilic block polyelectrolyte with oppositely charged fluorosurfactant
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SYSNO ASEP 0379950 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Wormlike core-shell nanoparticles formed by co-assembly of double hydrophilic block polyelectrolyte with oppositely charged fluorosurfactant Tvůrce(i) Štěpánek, M. (CZ)
Škvarla, J. (CZ)
Uchman, M. (CZ)
Procházka, K. (CZ)
Angelov, Borislav (UMCH-V) RID
Kováčik, L. (CZ)
Garamus, V. M. (DE)
Mantzaridis, Ch. (GR)
Pispas, S. (GR)Zdroj.dok. Soft Matter - ISSN 1744-683X
Roč. 8, č. 36 (2012), s. 9412-9417Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova cryoTEM electron microscopy ; SAXS ; soft matter Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP GAP208/10/1600 GA ČR - Grantová agentura ČR GAP208/10/0353 GA ČR - Grantová agentura ČR Institucionální podpora UMCH-V - RVO:61389013 CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000307904300015 DOI 10.1039/c2sm25588j Anotace Formation of polyelectrolyte–surfactant complexes (PE–S) between an anionic polyelectrolyte, poly(sodium 2-sulfamate-3-carboxylate isoprene)-block-poly(ethylene oxide) (PSCI-PEO) and a cationic fluorosurfactant, N-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl) pyridinium chloride (HFDPCl) was studied in alkaline aqueous solutions by static, dynamic and electrophoretic light scattering. The structure of the formed PE–S nanoparticles was investigated by SAXS, cryogenic transmission electron microscopy and atomic force microscopy. The results show that the tendency of the fluorosurfactant to form elongated threadlike micelles drives the PE–S co-assembly to a flexible core–shell cylindrical morphology with the core of the PE–S and the shell of the PEO blocks. Unlike other PE–S systems involving double hydrophilic polyelectrolytes, well-defined core–shell particles exist only in the narrow range of HFDPCl-to-PSCI unit stoichiometric ratios corresponding to zero ζ-potential of the aggregates. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2013
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