About: Molecular properties of hybrid macromolecular antioxidants: dextran hydrophobically modified by sterically hindered phenols

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The conformation properties of clinically relevant hybrid macromolecular antioxidants (dextran hydrophobically modified by sterically hindered phenols) in aqueous solution were characterized by a combination of dynamic light scattering (DLS), size exclusion chromatography (SEC), and small-angle neutron scattering (SANS). We were able to split and analyze separately two different types of polydispersity—polydispersity over molecular weights and the one over substitution degree. The properties of the hybrid macromolecules are determined by the number of hydrophobic antioxidants in a single molecule. An insertion of hydrophobic groups into a hydrophilic chain changes the conformation of a single conjugate macromolecule. We have established that with the increasing of a number of hydrophobic antioxidant groups, a conformational transition occurs where a single conjugate undergoes a transition from a Gaussian coil conformation to a more compact structure. The conformation properties of clinically relevant hybrid macromolecular antioxidants (dextran hydrophobically modified by sterically hindered phenols) in aqueous solution were characterized by a combination of dynamic light scattering (DLS), size exclusion chromatography (SEC), and small-angle neutron scattering (SANS). We were able to split and analyze separately two different types of polydispersity—polydispersity over molecular weights and the one over substitution degree. The properties of the hybrid macromolecules are determined by the number of hydrophobic antioxidants in a single molecule. An insertion of hydrophobic groups into a hydrophilic chain changes the conformation of a single conjugate macromolecule. We have established that with the increasing of a number of hydrophobic antioxidant groups, a conformational transition occurs where a single conjugate undergoes a transition from a Gaussian coil conformation to a more compact structure. (en)
Title	Molecular properties of hybrid macromolecular antioxidants: dextran hydrophobically modified by sterically hindered phenols Molecular properties of hybrid macromolecular antioxidants: dextran hydrophobically modified by sterically hindered phenols (en)
skos:prefLabel	Molecular properties of hybrid macromolecular antioxidants: dextran hydrophobically modified by sterically hindered phenols Molecular properties of hybrid macromolecular antioxidants: dextran hydrophobically modified by sterically hindered phenols (en)
skos:notation	RIV/61389013:_____/11:00371251!RIV12-AV0-61389013
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP208/10/1600), Z(AV0Z40500505)
http://linked.open...iv/cisloPeriodika	11
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Štěpánek, Petr Walterová, Zuzana Porsch, Bedřich Filippov, Sergey
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	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	213511
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/11:00371251
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	dextran; antioxidant; conjugat (en)
http://linked.open.../riv/klicoveSlovo	conjugat dextran antioxidant
http://linked.open...odStatuVydavatele	IT - Italská republika
http://linked.open...ontrolniKodProRIV	[EA76059D448A]
http://linked.open...i/riv/nazevZdroje	European Physical Journal E
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	11 (xsd:int)
http://linked.open...vavai/riv/projekt	Polymeric particles and nanostructured materials stabilized by surface active molecules
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	34
http://linked.open...iv/tvurceVysledku	Filippov, Sergey Štěpánek, Petr Walterová, Zuzana Domnina, N. S. Garamus, V. M. Komarova, E. A. Lesnichin, S. B. Lezov, A. V. Olifirenko, A. S. Porsch, Bedřich Sergeeva, O. Yu.
http://linked.open...ain/vavai/riv/wos	000298047400006
http://linked.open...n/vavai/riv/zamer	Progresivní makromolekulární materiály a supramolekulární systémy: syntéza a studium vlastností, jevů a možností využití pro speciální aplikace a moderní technologie
issn	1292-8941
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1140/epje/i2011-11123-7

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