Techniques for increasing the thermal stability of poly[(R)-3-hydroxybutyrate] recovered by digestion methods

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dc.contributor.authorPospíšilová, Anetacs
dc.contributor.authorMelčová, Veronikacs
dc.contributor.authorFigalla, Silvestrcs
dc.contributor.authorMenčík, Přemyslcs
dc.contributor.authorPřikryl, Radekcs
dc.coverage.issue1cs
dc.coverage.volume193cs
dc.date.accessioned2021-11-30T11:55:16Z
dc.date.available2021-11-30T11:55:16Z
dc.date.issued2021-09-22cs
dc.description.abstractThis work deals with the thermal stability of poly[(R)-3-hydroxybutyrate] (PHB) obtained by different isolation methods. PHB was recovered from bacteria by digestion with three different reagents (acid, base, surfactant) and by chloroform extraction as a reference. Thermal stability of the samples was investigated by differential scanning calorimetry, isothermal degradation with hot press, and gel permeation chromatography and was compared with the stability of commercially available PHB. PHBs recovered by digestion with alkaline reagents were found to be thermally unstable, compared to the extracted polymer and the commercially available one. Two different techniques for stabilization of PHB obtained by digestion methods were tested wash with acid solution or addition of carboxylic acid or anhydride before heating. Both methods proved to significantly increase the thermal stability. (C) 2021 Elsevier Ltd. All rights reserved.en
dc.description.embargo2023-09-23cs
dc.formattextcs
dc.format.extent1-7cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPOLYMER DEGRADATION AND STABILITY. 2021, vol. 193, issue 1, p. 1-7.en
dc.identifier.doi10.1016/j.polymdegradstab.2021.109727cs
dc.identifier.issn0141-3910cs
dc.identifier.orcid0000-0002-2124-6953cs
dc.identifier.orcid0000-0003-2392-8031cs
dc.identifier.orcid0000-0002-1914-8764cs
dc.identifier.orcid0000-0002-7811-9840cs
dc.identifier.other174097cs
dc.identifier.researcheridABD-4360-2020cs
dc.identifier.researcheridE-8210-2010cs
dc.identifier.scopus57204110910cs
dc.identifier.urihttp://hdl.handle.net/11012/203004
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofPOLYMER DEGRADATION AND STABILITYcs
dc.relation.urihttps://doi.org/10.1016/j.polymdegradstab.2021.109727cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0141-3910/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectPolyhydroxyalkanoateen
dc.subjectPolyhydroxybutyrateen
dc.subjectPoly[(R)-3-hydroxybutyrate]en
dc.subjectPHBen
dc.subjectP3HBen
dc.subjectRecoveryen
dc.subjectIsolationen
dc.subjectDegradationen
dc.subjectStabilityen
dc.titleTechniques for increasing the thermal stability of poly[(R)-3-hydroxybutyrate] recovered by digestion methodsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-174097en
sync.item.dbtypeVAVen
sync.item.insts2023.09.23 12:56:49en
sync.item.modts2023.09.23 12:14:51en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Centrum materiálového výzkumucs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
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