Influence Of Thermal Treatment Time On Structural And Physical Properties Of Polyimide Films At Beginning Of Carbonization

dc.creatorFerreira
dc.creatorFAS; Battirola
dc.creatorLC; Lewicki
dc.creatorJP; Worsley
dc.creatorMA; Pereira-da-Silva
dc.creatorMA; Amaral
dc.creatorT; Lepienski
dc.creatorCM; Rodrigues
dc.creatorUP
dc.date2016
dc.date2016-12-06T18:29:48Z
dc.date2016-12-06T18:29:48Z
dc.date.accessioned2018-03-29T02:02:20Z
dc.date.available2018-03-29T02:02:20Z
dc.identifier1873-2321
dc.identifierPolymer Degradation And Stability. ELSEVIER SCI LTD, n. 129, p. 399 - 407.
dc.identifier1873-2321
dc.identifierWOS:000379372200041
dc.identifier10.1016/j.polymdegradstab.2016.05.001
dc.identifierhttp://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0141391016301318
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/319869
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1310635
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionPoly(4,4'-oxydiphenylene-oxydiphthalimide) (POO) was thermally treated at 773 K for 1, 15 and 60 min under argon atmosphere resulting in free-standing films with intermingled characteristics between polymer and carbon-rich derivatives. Degradative thermal analysis performed by pyrolysis-gas chromatography/mass spectroscopy (Py-GC/MS) revealed CO2 among the major products of thermal decomposition which according to electron paramagnetic resonance (EPR) passed through a radical process. X-ray diffraction (XRD) revealed thermal treated samples with semicrystalline organization that was attributed to the development of lamellae structure. Moreover, Atomic force microscopy (AFM) showed an increase in the roughness of the samples that acquired pronounced roughcast-like surface. Hence, there was an enhancement of mechanical strength and dielectric permittivity. From the data collected a mechanism of thermal decomposition was proposed. (C) 2016 Elsevier Ltd. All rights reserved.
dc.description129
dc.description
dc.description399
dc.description407
dc.descriptionCNPq [142910/2010-4]
dc.descriptionFAPESP [CEPID 2013/07793-6]
dc.descriptionU.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
dc.descriptionBrazilian Synchrotron Light Source (LNLS) [GAR-14024]
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description
dc.description
dc.description
dc.languageEnglish
dc.publisherELSEVIER SCI LTD
dc.publisherOXFORD
dc.relationPolymer Degradation And Stability
dc.rightsfechado
dc.sourceWOS
dc.subjectPolyimide
dc.subjectCarbon-rich Derivatives
dc.subjectThermal Degradation
dc.subjectStructural Rearrangement
dc.titleInfluence Of Thermal Treatment Time On Structural And Physical Properties Of Polyimide Films At Beginning Of Carbonization
dc.typeArtículos de revistas


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