Non-isothermal degradation kinetics of poly (2,2'-dihydroxybiphenyl)

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dc.authoridKaya, İsmet / 0000-0002-9813-2962
dc.authoridDoğan, Fatih / 0000-0001-5844-8893
dc.contributor.authorDoğan, Fatih
dc.contributor.authorKaya, İsmet
dc.contributor.authorBilici, Ali
dc.date.accessioned2025-01-27T20:49:39Z
dc.date.available2025-01-27T20:49:39Z
dc.date.issued2009
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractCatalytic oxidative polymerization of 2,2'-dihydroxybiphenyl (DHBP) was performed by using Schiff base polymer-Cu (II) complex and hydrogen peroxide as catalyst and oxidant, respectively. According to size exclusion chromatography (SEC) analysis, the number-average molecular weight (M (n)), weight-average molecular weight (M (w)) and polydispersity index (PDI) values of poly (2,2'-dihydroxybiphenyl) (PDHBP) were found to be 37,500, 90,000 g mol(-1) and 2.4, respectively. The thermal degradation kinetics was investigated by thermogravimetric analysis in dynamic nitrogen atmosphere at four different heating rates: 5, 10, 15 and 20 A degrees C min(-1). The derivative thermogravimetry curves of PDHBP showed that its thermal degradation process had one weight-loss step. The apparent activation energies of thermal decomposition for PDHBP as determined by Tang, Flynn-Wall-Ozawa (FWO), Kissenger-Akahira-Sunose (KAS), Coats-Redfern (CR) and Invariant kinetic parameter (IKP) methods were 109.1, 109.0, 110.0, 108.4 and 109.8 kJ mol(-1), respectively. The mechanism function and pre-exponential factor were determined by master plots and Criado-Malek-Ortega method. The most likely decomposition process was a D (n) Deceleration type in terms of the CR, master plots and Criado-Malek-Ortega results.
dc.identifier.doi10.1007/s00289-009-0084-5
dc.identifier.endpage282
dc.identifier.issn0170-0839
dc.identifier.issn1436-2449
dc.identifier.issue2
dc.identifier.scopus2-s2.0-67650435843
dc.identifier.scopusqualityQ1
dc.identifier.startpage267
dc.identifier.urihttps://doi.org/10.1007/s00289-009-0084-5
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25262
dc.identifier.volume63
dc.identifier.wosWOS:000267110100010
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofPolymer Bulletin
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPoly (2,2 '-dihydroxybiphenyl)
dc.subjectKinetic parameter
dc.subjectMechanism function
dc.titleNon-isothermal degradation kinetics of poly (2,2'-dihydroxybiphenyl)
dc.typeArticle

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