Počet záznamů: 1
Polyelectrolyte-surfactant complexes formed by poly[3,5-bis(trimethylammoniummethyl)4-hydroxystyrene iodide]-block-poly(ethylene oxide) and sodium dodecyl sulfate in aqueous solutions
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SYSNO ASEP 0359222 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Polyelectrolyte-surfactant complexes formed by poly[3,5-bis(trimethylammoniummethyl)4-hydroxystyrene iodide]-block-poly(ethylene oxide) and sodium dodecyl sulfate in aqueous solutions Tvůrce(i) Štěpánek, M. (CZ)
Matějíček, P. (CZ)
Procházka, K. (CZ)
Filippov, Sergey K. (UMCH-V) RID, ORCID, SAI
Angelov, Borislav (UMCH-V) RID
Šlouf, Miroslav (UMCH-V) RID, ORCID
Mountrichas, G. (GR)
Pispas, S. (GR)Zdroj.dok. Langmuir. - : American Chemical Society - ISSN 0743-7463
Roč. 27, č. 9 (2011), s. 5275-5281Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova polyelectrolyte-surfactant complexes ; sodium dodecyl sulfate ; small-angle X-ray scattering Vědní obor RIV CD - Makromolekulární chemie CEP ME09059 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GCP205/11/J043 GA ČR - Grantová agentura ČR GAP208/10/0353 GA ČR - Grantová agentura ČR CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000289742500013 DOI 10.1021/la200442s Anotace Formation of polyelectrolyte−surfactant (PE−S) complexes of poly[3,5-bis(trimethylammoniummethyl)-4-hydroxystyrene iodide]-block-poly(ethylene oxide) (QNPHOS−PEO) and sodium dodecyl sulfate (SDS) in aqueous solution was studied by dynamic and electrophoretic light scattering, SAXS, AFM, and fluorometry. SAXS data from the QNPHOS−PEO/SDS solutions were fitted assuming contributions from free copolymer, PE−S aggregates described by a mass fractal model, and densely packed surfactant micelles inside the aggregates. It was found that, unlike other systems of a double hydrophilic block polyelectrolyte and an oppositely charged surfactant, PE−S aggregates of the QNPHOS−PEO/SDS system do not form core−shell particles and the PE−S complex precipitates before reaching the charge equivalence between dodecyl sulfate anions and QNPHOS polycationic blocks, most likely because of conformational rigidity of the QNPHOS blocks, which prevents the system from the corresponding rearrangement. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2012
Počet záznamů: 1