About: Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers

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About: Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers Goto Sponge NotDistinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1016/j.colsurfa. 2014.04.059 .
Description	Aqueous dispersions of hydrophobic high-molar-mass cellulose-graft-polystyrene (Cel-g-PS) copolymers were prepared by nanoprecipitation from 1,4-dioxane solutions using sodium dodecyl sulfate as a stabilizer. The size and structure of formed Cel-g-PS nanoparticles were studied by scattering techniques (static and dynamic light scattering, SAXS) and transmission electron microscopy. The scattering and microscopy data show that nanoprecipitation of Cel-g-PS leads to the formation of polydisperse aggregates of collapsed Cel-g-PS macromolecules containing entrapped SDS micelles in the kinetically frozen state. The final size of the aggregates can be tuned by changing the copolymer concentration, c(P), in the dioxane solution. The average hydrodynamic radius of the aggregates, RH, scales as [(R-H/R-H,(o))(2.5) - 1] similar to c(P), where R-H,R-o is the R-H value extrapolated to the zero copolymer concentration. Aqueous dispersions of hydrophobic high-molar-mass cellulose-graft-polystyrene (Cel-g-PS) copolymers were prepared by nanoprecipitation from 1,4-dioxane solutions using sodium dodecyl sulfate as a stabilizer. The size and structure of formed Cel-g-PS nanoparticles were studied by scattering techniques (static and dynamic light scattering, SAXS) and transmission electron microscopy. The scattering and microscopy data show that nanoprecipitation of Cel-g-PS leads to the formation of polydisperse aggregates of collapsed Cel-g-PS macromolecules containing entrapped SDS micelles in the kinetically frozen state. The final size of the aggregates can be tuned by changing the copolymer concentration, c(P), in the dioxane solution. The average hydrodynamic radius of the aggregates, RH, scales as [(R-H/R-H,(o))(2.5) - 1] similar to c(P), where R-H,R-o is the R-H value extrapolated to the zero copolymer concentration. (en)
Title	Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers (en)
skos:prefLabel	Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers Structure of polymeric nanoparticles in surfactant-stabilized aqueous dispersions of high-molar-mass hydrophobic graft copolymers (en)
skos:notation	RIV/00216208:11310/14:10271759!RIV15-MSM-11310___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP106/12/0143), P(TE01020118)
http://linked.open...iv/cisloPeriodika	August
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Procházka, Karel Štěpánek, Miroslav Hajduová, Jana
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	47940
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/14:10271759
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	light scattering; graft copolymer; nanoprecipitation (en)
http://linked.open.../riv/klicoveSlovo	nanoprecipitation graft copolymer light scattering
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[DF88D3FC17EC]
http://linked.open...i/riv/nazevZdroje	Colloids and Surfaces A: Physicochemical and Engineering Aspects
http://linked.open...in/vavai/riv/obor	EA
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Electron microscopy Conformational behavior and (co)self-assembly of new double-hydrophilic and amphiphilic block polyelectrolytes. Thermodynamic and kinetic aspects.
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	456
http://linked.open...iv/tvurceVysledku	Raus, Vladimír Šlouf, Miroslav Procházka, Karel Štěpánek, Miroslav Krzyžánek, Vladislav Hajduová, Jana Garamus, Vasil M.
http://linked.open...ain/vavai/riv/wos	000340318000002
issn	0927-7757
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.colsurfa.2014.04.059
http://localhost/t...ganizacniJednotka	11310

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