The green synthesis of oligo(azomethine)s based on p-anisidine and o-anisidine: reaction conditions, electrochemical and thermal properties

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dc.contributor.authorKaya, Ismet
dc.contributor.authorKoca, Semra
dc.contributor.authorYagmur, Hatice Karaer
dc.date.accessioned2024-04-24T16:24:55Z
dc.date.available2024-04-24T16:24:55Z
dc.date.issued2022
dc.departmentDicle Üniversitesien_US
dc.description.abstractSchiff bases and their conjugated oligo(azomethine)s have been synthesized via condensation and oxidative polycondensation of o-anisidine (OA) with 2-hydroxy-1-naphthaldehyde (2-HNA) and p-anisidine (PA) with 4-hydroxy benzaldehyde (4-HBA), respectively. The oxidative polycondensation reaction conditions of 1-[(2-methoxyphenylimino)methyl]naphthalen-2-ol (1,2-MPIMN) and 4-[(4-methoxyphenylimino)methyl]phenol (4,4-MPIMP) were studied by oxidants such as air and aqueous solutions of H2O2 and NaOCl in different concentrations in an aqueous alkaline medium between 50 degrees C and 90 degrees C at different reaction times. The structures of polymers were confirmed by FT-IR, UV-Vis and H-1-C-13-NMR measurements. The molecular weights and surface morphologies of oligomers were determined by size exclusion chromatography (SEC) and scanning electron microscopy (SEM), respectively. Electrochemical and thermal features of compounds were studied using UV-Vis spectroscopies, cycling voltammetry (CV), and TG-DTA. The mass losses values of the 1,2-MPIMN, oligo(1,2-MPIMN), 4,4-MPIMP, and oligo(4,4-MPIMP) were calculated from the thermogravimetric curves as 98.00%, 53.52%, 69.00%, and 58.70%, respectively, at 1000 degrees C. The HOMO, LUMO levels, electrochemical (E-g(')), and optical band gap energies (E-g) values of the compounds were calculated from CV and UV-Vis data. The E-g(') values of 1,2-MPIMN, oligo(1,2-MPIMN), 4,4-MPIMP, and oligo(4,4-MPIMP) were found to be 2.64, 1.54, 2.31, and 2.16 eV, respectively. The electrical properties of monomers and oligomers were determined at room temperature.en_US
dc.identifier.doi10.1080/10601325.2022.2140675
dc.identifier.endpage862en_US
dc.identifier.issn1060-1325
dc.identifier.issn1520-5738
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-85141350736
dc.identifier.scopusqualityQ2
dc.identifier.startpage849en_US
dc.identifier.urihttps://doi.org/10.1080/10601325.2022.2140675
dc.identifier.urihttps://hdl.handle.net/11468/16899
dc.identifier.volume59en_US
dc.identifier.wosWOS:000878897200001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherTaylor & Francis Incen_US
dc.relation.ispartofJournal of Macromolecular Science Part A-Pure and Applied Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGreen Synthesisen_US
dc.subjectPoly(Azomethine)en_US
dc.subjectPoly(Imine)en_US
dc.subjectSchiff Baseen_US
dc.subjectConductivityen_US
dc.subjectThermal Propertiesen_US
dc.titleThe green synthesis of oligo(azomethine)s based on p-anisidine and o-anisidine: reaction conditions, electrochemical and thermal propertiesen_US
dc.titleThe green synthesis of oligo(azomethine)s based on p-anisidine and o-anisidine: reaction conditions, electrochemical and thermal properties
dc.typeArticleen_US

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