Thermal behavior of cellulose acetate produced from homogeneous acetylation of bacterial cellulose

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dc.contributor.authorBarud, Hernane S. [UNESP]
dc.contributor.authorde Araujo Junior, Adalberto M. [UNESP]
dc.contributor.authorSantos, Daniele B. [UNESP]
dc.contributor.authorde Assuncao, Rosana M. N.
dc.contributor.authorMeireles, Carla S.
dc.contributor.authorCerqueira, Daniel A.
dc.contributor.authorRodrigues Filho, Guimes
dc.contributor.authorRibeiro, Clovis Augusto [UNESP]
dc.contributor.authorMessaddeq, Younes [UNESP]
dc.contributor.authorRibeiro, Sidney José Lima [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.date.accessioned2014-05-20T14:20:21Z
dc.date.available2014-05-20T14:20:21Z
dc.date.issued2008-05-30
dc.description.abstractCellulose acetate (CA) is one of the most important cellulose derivatives and its main applications are its use in membranes, films, fibers, plastics and filters. CAs are produced from cellulose sources such as: cotton, sugar cane bagasse, wood and others. One promissory source of cellulose is bacterial cellulose (BC). In this work, CA was produced from the homogeneous acetylation reaction of bacterial cellulose. Degree of substitution (DS) values can be controlled by the acetylation time. The characterization of CA samples showed the formation of a heterogeneous structure for CA samples submitted to a short acetylation time. A more homogeneous structure was produced for samples prepared with a long acetylation time. This fact changes the thermal behavior of the CA samples. Thermal characterization revealed that samples submitted to longer acetylation times display higher crystallinity and thermal stability than samples submitted to a short acetylation time. The observation of these characteristics is important for the production of cellulose acetate from this alternative source. (C) 2008 Elsevier B.V. All rights reserved.en
dc.description.affiliationUNESP, Inst Chem, Dept Inorgan & Gen Chem, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUniversidade Federal de Uberlândia (UFU), Inst Chem, BR-38400902 Uberlandia, MG, Brazil
dc.description.affiliationUnespUNESP, Inst Chem, Dept Inorgan & Gen Chem, BR-14801970 Araraquara, SP, Brazil
dc.format.extent61-69
dc.identifierhttp://dx.doi.org/10.1016/j.tca.2008.02.009
dc.identifier.citationThermochimica Acta. Amsterdam: Elsevier B.V., v. 471, n. 1-2, p. 61-69, 2008.
dc.identifier.doi10.1016/j.tca.2008.02.009
dc.identifier.issn0040-6031
dc.identifier.lattes8498310891810082
dc.identifier.lattes2998503841917815
dc.identifier.lattes6446047463034654
dc.identifier.orcid0000-0002-7984-5908
dc.identifier.orcid0000-0003-3286-9440
dc.identifier.urihttp://hdl.handle.net/11449/26120
dc.identifier.wosWOS:000256558400010
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofThermochimica Acta
dc.relation.ispartofjcr2.189
dc.relation.ispartofsjr0,605
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectbacterial celluloseen
dc.subjecthomogeneous acetylationen
dc.subjectcellulose acetateen
dc.subjectthermal propertiesen
dc.titleThermal behavior of cellulose acetate produced from homogeneous acetylation of bacterial celluloseen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes2998503841917815
unesp.author.lattes6446047463034654
unesp.author.lattes8498310891810082[8]
unesp.author.orcid0000-0002-7984-5908[8]
unesp.author.orcid0000-0003-3286-9440[10]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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