Effect of the catalyst MCM-41 on the kinetic of the thermal decomposition of poly(ethylene terephthalate)

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dc.contributor.authorAraujo, Sulene A.
dc.contributor.authorAraujo, Antonio S.
dc.contributor.authorFernandes, Nedja S.
dc.contributor.authorFernandes, Valter J.
dc.contributor.authorIonashiro, Massao [UNESP]
dc.contributor.institutionUniversidade Estadual do Sudoeste da Bahia (UESB)
dc.contributor.institutionUniversidade Federal do Rio Grande do Norte (UFRN)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:19:31Z
dc.date.available2014-05-20T14:19:31Z
dc.date.issued2010-02-01
dc.description.abstractThe aim of this work is to determine the activation energy for the thermal decomposition of poly (ethylene terephthalate)-PET, in the presence of a MCM-41 mesoporous catalyst. This material was synthesized by the hydrothermal method, using cetyltrimethylammonium as template. The PET sample has been submitted to thermal degradation alone and in presence of MCM-41 catalyst at a concentration of 25% in mass (MCM-41/PET). The degradation process was evaluated by thermogravimetry, at temperature range from 350 to 500 degrees C, under nitrogen atmosphere, with heating rates of 5, 10 and 25 degrees C min(-1). From TG, the activation energy, determined using the Flynn-Wall kinetic method, decreased from 231 kJ mol(-1), for the pure polymer (PET), to 195 kJ mol(-1), in the presence of the material (MCM-41/PET), showing the catalyst efficiency for the polymer decomposition process.en
dc.description.affiliationState Univ SW Bahia UESB, Dept Chem, BR-45206190 Jequie, BA, Brazil
dc.description.affiliationUniversidade Federal do Rio Grande do Norte (UFRN), Dept Chem, BR-59078970 Natal, RN, Brazil
dc.description.affiliationUNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent465-469
dc.identifierhttp://dx.doi.org/10.1007/s10973-009-0490-9
dc.identifier.citationJournal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 99, n. 2, p. 465-469, 2010.
dc.identifier.doi10.1007/s10973-009-0490-9
dc.identifier.issn1388-6150
dc.identifier.lattes8460531302083773
dc.identifier.urihttp://hdl.handle.net/11449/25894
dc.identifier.wosWOS:000275657600013
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.subjectPoly(ethylene terephthalate)en
dc.subjectMCM-41en
dc.subjectFlynn-Wall kinetic modelen
dc.subjectThermogravimetryen
dc.titleEffect of the catalyst MCM-41 on the kinetic of the thermal decomposition of poly(ethylene terephthalate)en
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes8460531302083773
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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