Synthesis, Characterization, and Kinetic of Thermal Degradation of Oligo-2-[(4-bromophenylimino)methyl]phenol and Oligomer-Metal Complexes

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dc.authoridKaya, İsmet / 0000-0002-9813-2962
dc.contributor.authorKaya, İsmet
dc.contributor.authorSolguntekin, Ahmet
dc.date.accessioned2025-01-27T20:43:36Z
dc.date.available2025-01-27T20:43:36Z
dc.date.issued2009
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractOligo-2-[(4-bromophenylimino)methyl]phenol (OBPIMP) was synthesized from the oxidative poly-condensation reaction of 2-[(4-bromophenylimino)methyl] phenol (BPIMP) with air and NaOCl oxidants in an aqueous alkaline medium between 50 and 90 degrees C. The yield of OBPIMP was found to be 67 and 88% for air and NaOCl oxidants, respectively. Their structures were confirmed by elemental and spectral such as IR, ultra violet-visible spectrophotometer (UV-vis), (1)H-NMR, and (13)C-NMR analyses. The characterization was made by TG-DTA, size exclusion chromatography, and solubility tests. The resulting complexes were characterized by electronic and IR spectral measurements, elemental analysis, AAS, and thermal studies. According to TG analyses, the weight losses of OBPIMP, and oligomer-metal complexes with Co(+2), Ni(+2), and Cu(+2) ions were found to be 93.04%, 59.80%, 74.23%, and 59.30%, respectively, at 1000 degrees C. Kinetic and thermodynamic parameters of these compounds investigated by Coats-Redfern, MacCallum-Tanner, and van Krevelen methods. The values of the apparent activation energies of thermal decomposition (E(a)), the reaction order (n), preexponential factor (A), the entropy change (Delta S*), enthalpy change (Delta H*), and free energy change (Delta G*) obtained by earlier-mentioned methods were all good in agreement with each other. It was found that the thermal stabilities of the complexes follow the order Cu(II) > Co(II) > Ni(II). (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 1994-2007, 2009
dc.identifier.doi10.1002/app.30272
dc.identifier.endpage2007
dc.identifier.issn0021-8995
dc.identifier.issue3
dc.identifier.scopus2-s2.0-67650119321
dc.identifier.scopusqualityQ2
dc.identifier.startpage1994
dc.identifier.urihttps://doi.org/10.1002/app.30272
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24287
dc.identifier.volume113
dc.identifier.wosWOS:000266891100075
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherJohn Wiley & Sons Inc
dc.relation.ispartofJournal of Applied Polymer Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectazomethine oligomer
dc.subjectkinetic of thermal degradation
dc.subjectoxidative polycondensation
dc.subjectoligomer-metal complexes
dc.titleSynthesis, Characterization, and Kinetic of Thermal Degradation of Oligo-2-[(4-bromophenylimino)methyl]phenol and Oligomer-Metal Complexes
dc.typeArticle

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