Kinetic model of poly(3-hydroxybutyrate) thermal degradation from experimental non-isothermal data

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorSantos, A. F.
dc.creatorPolese, L.
dc.creatorCrespi, Marisa Spirandeli
dc.creatorRibeiro, Clovis Augusto
dc.date2014-05-20T14:19:22Z
dc.date2016-10-25T17:41:02Z
dc.date2014-05-20T14:19:22Z
dc.date2016-10-25T17:41:02Z
dc.date2009-04-01
dc.date.accessioned2017-04-05T22:31:08Z
dc.date.available2017-04-05T22:31:08Z
dc.identifierJournal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 96, n. 1, p. 287-291, 2009.
dc.identifier1388-6150
dc.identifierhttp://hdl.handle.net/11449/25841
dc.identifierhttp://acervodigital.unesp.br/handle/11449/25841
dc.identifier10.1007/s10973-006-8208-8
dc.identifierWOS:000264133900044
dc.identifier0000-0002-7984-5908
dc.identifierhttp://dx.doi.org/10.1007/s10973-006-8208-8
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/870680
dc.descriptionThe non-isothermal data given by TG curves for poly(3-hydroxybutyrate) (PHB) were studied in order to obtain a consistent kinetic model that better represents the PHB thermal decomposition. Thus, data obtained from the dynamic TG curves were suitably managed in order to obtain the Arrhenius kinetic parameter E according to the isoconversional F-W-O method. Once the E parameters is found, a suitable logA and kinetic model (f(alpha)) could be calculated. Hence, the kinetic triplet (E +/- SD, logA +/- SD and f(alpha)) obtained for the thermal decomposition of PHB under non-isothermal conditions was E=152 +/- 4 kJ mol(-1), logA=14.1 +/- 0.2 s(-1) for the kinetic model, and the autocatalytic model function was: f(alpha)=alpha(m)(1-alpha)(n)=alpha(0.42)(1-alpha)(0.56).
dc.languageeng
dc.publisherSpringer
dc.relationJournal of Thermal Analysis and Calorimetry
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectbiodegradable polymers
dc.subjectnon-isothermal kinetic
dc.subjectPHB thermal degradation
dc.titleKinetic model of poly(3-hydroxybutyrate) thermal degradation from experimental non-isothermal data
dc.typeOtro


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