Thermal Decomposition Kinetics of Poly(5-hydroxyquinoline) Synthesized by Oxidative Polycondensation

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dc.authoridDoğan, Fatih / 0000-0002-3088-886X
dc.authoridDoğan, Fatih / 0000-0001-5844-8893
dc.authoridKaya, İsmet / 0000-0002-9813-2962
dc.contributor.authorDoğan, Fatih
dc.contributor.authorKaya, İsmet
dc.date.accessioned2025-01-27T20:24:33Z
dc.date.available2025-01-27T20:24:33Z
dc.date.issued2014
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe reaction mechanism of decomposition process and the kinetic parameters of poly(5-hydroxyquinoline) synthesized by oxidative polymerization were investigated by thermogravimetric (TG) analysis at different heating rates. TG curves showed that the thermal decomposition occurred in two stages. The methods based on single and multiple heating rates were used to calculate the kinetic parameters. Compared with other methods based on single heating rate such as the Coats-Redfern (CR), van Krevelen (vK), Horowitz-Metzger (HM), these six methods present the advantage that they do not require knowledge of the reaction mechanism for determining of activation energy. The activation energies obtained by methods based on multiple heating rate such as the Kissinger, Kim-Park (KP), Tang (TM), Kissinger-Akahira-Sunose (KAS), Flynn-Wall-Ozawa (FWO), and Friedman were found to be 71.9, 75.5, 73.4, 73.1, 74.8, and 74.0 kJ/mol for the first decomposition stage, 498.5, 484.3, 522.1, 521.7, 522.1 and 522.7 kJ/mol for the second decomposition stage, respectively. The mechanisms and pre- exponential factor for each thermal decomposition stage were also determined by CR, vK, HM and master plots. The analysis of the master plots showed that the decomposition mechanism of poly(5-hydroxyquinoline) (PHQ) in N-2 went to the D-6 mechanism for both decomposition stages.
dc.identifier.doi10.1166/mat.2014.1186
dc.identifier.endpage317
dc.identifier.issn2169-429X
dc.identifier.issn2169-4303
dc.identifier.issue4
dc.identifier.startpage310
dc.identifier.urihttps://doi.org/10.1166/mat.2014.1186
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22269
dc.identifier.volume3
dc.identifier.wosWOS:000214967400012
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherAmer Scientific Publishers
dc.relation.ispartofMaterials Focus
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPoly(5-hydroxyquinoline)
dc.subjectThermogravimetric Analysis
dc.subjectActivation Energy
dc.subjectDecomposition Mechanism
dc.titleThermal Decomposition Kinetics of Poly(5-hydroxyquinoline) Synthesized by Oxidative Polycondensation
dc.typeArticle

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