Aromatic/Aliphatic Polyester Blends

dc.creatorQuental, AC
dc.creatorde Carvalho, FP
dc.creatorRezende, ML
dc.creatorRosa, DS
dc.creatorFelisberti, MI
dc.date2010
dc.dateSEP
dc.date2014-07-30T13:50:56Z
dc.date2015-11-26T17:44:54Z
dc.date2014-07-30T13:50:56Z
dc.date2015-11-26T17:44:54Z
dc.date.accessioned2018-03-29T00:27:09Z
dc.date.available2018-03-29T00:27:09Z
dc.identifierJournal Of Polymers And The Environment. Springer/plenum Publishers, v. 18, n. 3, n. 308, n. 317, 2010.
dc.identifier1566-2543
dc.identifierWOS:000284374200020
dc.identifier10.1007/s10924-010-0183-2
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/54889
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/54889
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1288019
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionBlends of poly(3-hydroxybutyrate) (PHB) and poly(ethylene terephthalate-co-1,4-cyclohexenedimethanol terephthalate) (PETG) were prepared in a batch mixer and in a twin screw extruder and characterized by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), field emission scanning electron microscopy (FE SEM), flexural tests, biodegradation tests in soil compost and in an enzymatic medium. The torque data showed that the addition of PETG to PHB improved its processability. DSC, DMA and FE SEM showed that the polymers are immiscible with morphology dependent on the processing conditions. A fine dispersion of PETG in the PHB matrix was observed for extruded and injection molded blends. Flexural modulus for blends was higher for blends in comparison with PHB, while the impact resistance of blends containing 20 wt% and 30 wt% of PETG is comparable to the value for PHB. PHB is biodegradable, while PETG did not degrade either in simulated soil or in the alpha-amylase medium. On the other hand, the PHB phase of the blends degrades under these aging conditions. Thus, the addition of PETG to PHB results in advantage such as improving of processability and Young's modulus without significant changes in the impact resistance while keeping the biodegradability of PHB.
dc.description18
dc.description3
dc.description308
dc.description317
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFAPESP [Proc.: 01/07841-3, 00/10063-0, 2004/15084-6, 2003/09926-1, 04/13723-1]
dc.languageen
dc.publisherSpringer/plenum Publishers
dc.publisherNew York
dc.publisherEUA
dc.relationJournal Of Polymers And The Environment
dc.relationJ. Polym. Environ.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectBlends
dc.subjectBiodegradability
dc.subjectPHB
dc.subjectPETG
dc.subjectProcessing
dc.subjectPoly(ethylene Oxide) Blends
dc.subjectCellulose-acetate Butyrate
dc.subjectMechanical-properties
dc.subjectBacterial Poly(3-hydroxybutyrate)
dc.subjectAtactic Poly(3-hydroxybutyrate)
dc.subjectPoly(epichlorohydrin) Blends
dc.subjectCrystallization Behavior
dc.subjectBiodegradable Polymers
dc.subjectThermal-behavior
dc.subjectMiscibility
dc.titleAromatic/Aliphatic Polyester Blends
dc.typeArtículos de revistas


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