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

Página do item simplificado
dc.contributor.authorSantos, A. F. [UNESP]
dc.contributor.authorPolese, L. [UNESP]
dc.contributor.authorCrespi, Marisa Spirandeli [UNESP]
dc.contributor.authorRibeiro, Clovis Augusto [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:19:22Z
dc.date.available2014-05-20T14:19:22Z
dc.date.issued2009-04-01
dc.description.abstractThe 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).en
dc.description.affiliationUniv Estadual Paulista, Inst Chem, Dept Analyt Chem, BR-14800900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Chem, Dept Analyt Chem, BR-14800900 São Paulo, Brazil
dc.format.extent287-291
dc.identifierhttp://dx.doi.org/10.1007/s10973-006-8208-8
dc.identifier.citationJournal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 96, n. 1, p. 287-291, 2009.
dc.identifier.doi10.1007/s10973-006-8208-8
dc.identifier.issn1388-6150
dc.identifier.lattes7471310113999140
dc.identifier.lattes8498310891810082
dc.identifier.orcid0000-0002-7984-5908
dc.identifier.urihttp://hdl.handle.net/11449/25841
dc.identifier.wosWOS:000264133900044
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal of Thermal Analysis and Calorimetry
dc.relation.ispartofjcr2.209
dc.relation.ispartofsjr0,587
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectbiodegradable polymersen
dc.subjectnon-isothermal kineticen
dc.subjectPHB thermal degradationen
dc.titleKinetic model of poly(3-hydroxybutyrate) thermal degradation from experimental non-isothermal dataen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes7471310113999140
unesp.author.lattes8498310891810082[4]
unesp.author.orcid0000-0002-7984-5908[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

Arquivos

Licença do Pacote
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos - Química Analítica - IQ