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dc.contributor.authorSmilek, Jiřícs
dc.contributor.authorJarábková, Sabínacs
dc.contributor.authorVelcer, Tomášcs
dc.contributor.authorPekař, Miloslavcs
dc.date.accessioned2020-08-04T10:59:30Z
dc.date.available2020-08-04T10:59:30Z
dc.date.issued2019-05-27cs
dc.identifier.citationPolymers. 2019, vol. 11, issue 5, p. 927-946.en
dc.identifier.issn2073-4360cs
dc.identifier.other157143cs
dc.identifier.urihttp://hdl.handle.net/11012/179677
dc.description.abstractThe rheological properties of hydrogels prepared by physical interactions between oppositely charged polyelectrolyte and surfactant in micellar form were studied. Specifically, hyaluronan was employed as a negatively charged polyelectrolyte and Septonex (carbethopendecinium bromide) as a cationic surfactant. Amino-modified dextran was used as a positively charged polyelectrolyte interacting with sodium dodecylsulphate as an anionic surfactant. The effects of the preparation method, surfactant concentration, ionic strength (the concentration of NaCl background electrolyte), pH (buffers), multivalent cations, and elevated temperature on the properties were investigated. The formation of gels required an optimum ionic strength (set by the NaCl solution), ranging from 0.15–0.3 M regardless of the type of hydrogel system and surfactant concentration. The other compositional effects and the effect of temperature were dependent on the polyelectrolyte type or its molecular weight. General differences between the behaviour of hyaluronan-based and cationized dextran-based materials were attributed to differences in the chain conformations of the two biopolymers and in the accessibility of their charged groups.en
dc.formattextcs
dc.format.extent927-946cs
dc.format.mimetypeapplication/pdfcs
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofPolymerscs
dc.relation.urihttps://www.mdpi.com/2073-4360/11/5/927cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectHyaluronanen
dc.subjectcarbethopendecinium bromideen
dc.subjectsodium dodecyl sulphateen
dc.subjectdiethylaminoethyl-dextran hydrochlorideen
dc.subjectrheologyen
dc.subjecthydrogelsen
dc.titleCompositional and Temperature Effects on the Rheological Properties of Polyelectrolyte–Surfactant Hydrogelsen
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Centrum materiálového výzkumucs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav fyzikální a spotřební chemiecs
sync.item.dbidVAV-157143en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 12:59:30en
sync.item.modts2020.08.04 12:40:58en
dc.coverage.issue5cs
dc.coverage.volume11cs
dc.identifier.doi10.3390/polym11050927cs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4360/cs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen


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Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0 International