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Polyurethane films prepared with isophorone diisocyanate functionalized wheat starch

2021Journal article Open access
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dc.contributor.authorHosseinpourpia, Reza
dc.contributor.authorAdamopoulos, Stergios
dc.contributor.authorSantamaria-Echart, Arantzazu
dc.contributor.authorEceiza, Arantaxa
dc.date.accessioned2021-11-17T15:52:21Z
dc.date.available2021-11-17T15:52:21Z
dc.date.issued2021
dc.description.abstractThis study reports the fabrication and performance of sustainable polyurethane (PU) films based on wheat starch (native NS, modified MS), bio-polyols (1,3-propanediol PD, glycerol Gly), and polymeric diphenylmethane diisocyanate (pMDI). NS was successfully modified with isophorone diisocyanate, confirmed by Fourier transform infrared spectroscopy (FTIR) and 13C nuclear magnetic resonance (13C NMR). Various PU films were prepared using NS, PD or Gly, MS and pMDI. For comparison, reference films were also synthesized without MS. PU films were analyzed from the viewpoint of their chemical, thermomechanical and flexural properties, and microstructural morphology. FTIR spectra demonstrated the total consumption of NCO groups, while the scanning electron microscopy micrographs of the films revealed that MS addition promoted the interactions between the compounds, enhancing in consequence their mechanical and thermomechanical performance. The study supported the suitability of functionalized carbohydrates to substitute petrochemical compounds in the synthesis of more environmentally-friendly PUs.pt_PT
dc.description.sponsorshipThe authors acknowledge the financial support of Lantm¨annen Forskningsstiftelse (Grant No. 2017H011), University of the Basque Country (UPV/EHU) (GIU18/216 Research Group) and Basque Government (PIBA2020-1-0041). Authors are also grateful to the SGIker units of the UPV/EHU. Dr Hosseinpourpia also wishes to thank the support of Formas, Swedish Research Council for Sustainable Development (Future research leaders, Grant No. 2018-00637).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationHosseinpourpia, Reza; Adamopoulos, Stergios; Santamaria-Echart, Arantzazu; Eceiza, Arantxa (2021). Polyurethane films prepared with isophorone diisocyanate functionalized wheat starch. European Polymer Journal. ISSN 0014-3057. 161, p. 1-9pt_PT
dc.identifier.doi10.1016/j.eurpolymj.2021.110826pt_PT
dc.identifier.issn0014-3057
dc.identifier.urihttp://hdl.handle.net/10198/24218
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPolyurethanept_PT
dc.subjectWheat starchpt_PT
dc.subjectIPDIpt_PT
dc.subjectIsocyanate chemistrypt_PT
dc.subjectBio-composite filmspt_PT
dc.subjectModification of polysaccharidespt_PT
dc.titlePolyurethane films prepared with isophorone diisocyanate functionalized wheat starchpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage110826pt_PT
oaire.citation.titleEuropean Polymer Journalpt_PT
oaire.citation.volume161pt_PT
person.familyNameSantamaria-Echart
person.givenNameArantzazu
person.identifier.ciencia-id0C17-1E1F-2621
person.identifier.orcid0000-0003-0107-7301
person.identifier.scopus-author-id56725697700
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationeb945e05-928f-45cb-ac27-04b4159ae31a
relation.isAuthorOfPublication.latestForDiscoveryeb945e05-928f-45cb-ac27-04b4159ae31a

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