Preparation of the copper-based polyoxometalate/polyurethane composites and their dielectric properties

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dc.contributor.authorKucuk, Ilhan
dc.contributor.authorVural, Sema
dc.contributor.authorKivilcim, Nilufer
dc.contributor.authorAdiguzel, Ibrahim
dc.contributor.authorKoytepe, Suleyman
dc.contributor.authorSeckin, Turgay
dc.date.accessioned2024-02-23T14:26:59Z
dc.date.available2024-02-23T14:26:59Z
dc.date.issued2020
dc.departmentNEÜen_US
dc.description.abstractThe aim of this study is synthesis of polyurethane (PU) composites from 4,4 '-methylenebis(cyclohexyl isocyanate), 1,2-ethanediol and different amounts of copper-based polyoxometalate (Cu-POM) and investigation of their dielectric properties. Firstly, Cu-POM structure as reinforcement was synthesized with ammonium heptamolybdate and Cu metal ion salt by a hydrothermal synthesis method. Then, Cu-POM-PU composites were prepared by in situ polymerization process. The prepared Cu-POM-PU composites were characterized by means of various techniques for their structure, morphology and thermal behaviour. The chemical structure, surface and morphological properties of the obtained composites were studied by Fourier transform infrared spectroscopy, X-ray diffraction spectroscopy, scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) techniques. Thermal properties of these Cu-POM-PU composites were determined by thermogravimetric analysis, differential thermal analysis and differential scanning calorimetry analysis techniques. Dielectric properties of the Cu-POM-PU composites were also determined. The dielectric measured results showed that the dielectric constants decreased with the increase of the Cu-POMs content. The Cu-POM-PU composites showed relatively low dielectric constant compared to pure PUs.en_US
dc.identifier.doi10.1177/0967391119887574
dc.identifier.endpage483en_US
dc.identifier.issn0967-3911
dc.identifier.issn1478-2391
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-85075166670en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage473en_US
dc.identifier.urihttps://doi.org/10.1177/0967391119887574
dc.identifier.urihttps://hdl.handle.net/20.500.12452/14407
dc.identifier.volume28en_US
dc.identifier.wosWOS:000555457800004en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSage Publications Ltden_US
dc.relation.ispartofPolymers & Polymer Compositesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPolyoxomethalatesen_US
dc.subjectPolyurethaneen_US
dc.subjectCompositeen_US
dc.subjectDielectric Propertiesen_US
dc.titlePreparation of the copper-based polyoxometalate/polyurethane composites and their dielectric propertiesen_US
dc.typeArticleen_US

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