Study of thermodegradation and thermostabilization of poly(lactide acid) using subsequent extrusion cycles

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dc.contributor.authorAmorin N.S.Q.S.
dc.contributor.authorRosa G.
dc.contributor.authorAlves J.F.
dc.contributor.authorGoncalves S.P.C.
dc.contributor.authorFranchetti S.M.M.
dc.contributor.authorFechine G.J.M.
dc.date.accessioned2024-03-13T01:00:44Z
dc.date.available2024-03-13T01:00:44Z
dc.date.issued2014
dc.description.abstractThe thermomechanical degradation and thermostabilization of poly(lactic acid) (PLA) have been studied using subsequent extrusion cycles under different temperature profiles. Primary and secondary antioxidants were used to avoid degradation process during extrusion. Melt flow index (MFI), size exclusion chromatography (SEC), and infrared spectroscopy (FTIR) analysis were used to evaluate the degradation and stabilization of PLA. The MFI and SEC analysis show that the main thermodegradation mechanism of PLA is governed by scission reactions. FTIR analysis confirmed the SEC results and showed that the synergetic effect between primary and secondary antioxidant is a suitable way to thermostabilize the PLA. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2014, 131, 40023. Copyright © 2014 Wiley Periodicals, Inc.
dc.description.issuenumber6
dc.description.volume131
dc.identifier.doi10.1002/app.40023
dc.identifier.issn1097-4628
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/36396
dc.relation.ispartofJournal of Applied Polymer Science
dc.rightsAcesso Restrito
dc.subject.otherlanguagebiodegradable
dc.subject.otherlanguagedegradation
dc.subject.otherlanguagerecycling
dc.subject.otherlanguagespectroscopy
dc.titleStudy of thermodegradation and thermostabilization of poly(lactide acid) using subsequent extrusion cycles
dc.typeArtigo
local.scopus.citations40
local.scopus.eid2-s2.0-84896547681
local.scopus.subjectbiodegradable
local.scopus.subjectDegradation process
local.scopus.subjectScission reactions
local.scopus.subjectSynergetic effect
local.scopus.subjectTemperature profiles
local.scopus.subjectThermo-degradation
local.scopus.subjectThermo-mechanical degradation
local.scopus.subjectThermostabilization
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84896547681&origin=inward
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