New low-band gap polyurethanes containing azomethine bonding: Photophysical, electrochemical, thermal and morphological properties

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dc.authoridKaya, İsmet / 0000-0002-9813-2962
dc.authoridKamacı, Musa / 0000-0001-5865-7687
dc.contributor.authorKamacı, Musa
dc.contributor.authorKaya, İsmet
dc.date.accessioned2025-01-27T20:41:46Z
dc.date.available2025-01-27T20:41:46Z
dc.date.issued2016
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this paper, a series of new Schiff bases with different substituents were prepared via condensation reaction of vanillin and different diamines. These monomers were converted to polyurethane derivatives using aliphatic and aromatic diisocyanates as co-monomer via step-polymerization reactions. Photophysical, electrochemical, thermal and morphological properties of these compounds were also clarified. Photophysical properties of the compounds were determined by using UV-vis and photoluminescence (PL) spectroscopy. Thermal stability and degradation behavior of Schiff bases and their poly(azomethine-urethane) derivatives were investigated by using TG-DTA technique. Also, thermal transitions properties of polyurethanes containing azomethine linkage were clarified using DSC technique. Mechanical and morphological properties of poly(azomethine-urethane)s were also determined by using DMA and SEM, respectively. Morphological photographs showed that poly(azomethine-urethane)s have different particle sizes and consist of semi crystalline particles. Electrochemical properties of the materials were investigated by using cyclic voltammetry (CV). Electrochemical results showed that PAMUs have electrochemical band gap below 2.0 eV. (C) 2015 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.jtice.2015.08.018
dc.identifier.endpage546
dc.identifier.issn1876-1070
dc.identifier.issn1876-1089
dc.identifier.scopus2-s2.0-84958118790
dc.identifier.scopusqualityQ1
dc.identifier.startpage536
dc.identifier.urihttps://doi.org/10.1016/j.jtice.2015.08.018
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24233
dc.identifier.volume59
dc.identifier.wosWOS:000370883900063
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofJournal of The Taiwan Institute of Chemical Engineers
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPolyurethanes
dc.subjectThermal properties
dc.subjectLow-band gap polymers
dc.subjectVanillin
dc.subjectAzomethine
dc.titleNew low-band gap polyurethanes containing azomethine bonding: Photophysical, electrochemical, thermal and morphological properties
dc.typeArticle

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