Investigation Of Cellulose Acetate Viscoelastic Properties In Different Solvents And Microstructure

dc.creatorFerrarezi M.M.F.
dc.creatorRodrigues G.V.
dc.creatorFelisberti M.I.
dc.creatorGoncalves M.D.C.
dc.date2013
dc.date2015-06-25T19:16:19Z
dc.date2015-11-26T15:14:22Z
dc.date2015-06-25T19:16:19Z
dc.date2015-11-26T15:14:22Z
dc.date.accessioned2018-03-28T22:24:24Z
dc.date.available2018-03-28T22:24:24Z
dc.identifier
dc.identifierEuropean Polymer Journal. , v. 49, n. 9, p. 2730 - 2737, 2013.
dc.identifier143057
dc.identifier10.1016/j.eurpolymj.2013.06.007
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84881369650&partnerID=40&md5=45e73625a4fb5cd725c8ce3e44311bee
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/89454
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/89454
dc.identifier2-s2.0-84881369650
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1258841
dc.descriptionThis paper deals with the effect of solvent on the viscoelastic properties and microstructure of cellulose acetate (CA) by means of rheological measurements, dynamic-mechanical analysis and scanning electron microscopy. Acetone, acetic acid, dimethylacetamide (DMAc) and dimethylformamide (DMF) were used as good solvents and water as a non-solvent. The addition of water in the cellulose acetate/solvent mixture led to the development of an intense shear thinning behavior, as it caused the formation of CA agglomerates which were disrupted in a steady shearing condition. Apart from this, a three-dimensional elastic gel behavior in the CA/DMF/water and CA/DMAc/water solutions was observed during dynamical rheological analysis. The formation of CA agglomerates was controlled by the solvent type and resulted in microstructure changes, going from a dense structure to a porous one, and also influenced the CA chain rigidity and consequently the glass transition temperatures of the CA films. © 2013 Elsevier Ltd. All rights reserved.
dc.description49
dc.description9
dc.description2730
dc.description2737
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dc.languageen
dc.publisher
dc.relationEuropean Polymer Journal
dc.rightsfechado
dc.sourceScopus
dc.titleInvestigation Of Cellulose Acetate Viscoelastic Properties In Different Solvents And Microstructure
dc.typeArtículos de revistas


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