Post consumer pet depolymerization by acid hydrolysis

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2014-05-20T13:12:09Z
dc.date.available2014-05-20T13:12:09Z
dc.date.created2014-05-20T13:12:09Z
dc.date.issued2007-02-01
dc.identifierPolymer-plastics Technology and Engineering. Philadelphia: Taylor & Francis Inc., v. 46, n. 2, p. 135-144, 2007.
dc.identifier0360-2559
dc.identifierhttp://hdl.handle.net/11449/149
dc.identifier10.1080/03602550601152945
dc.identifierWOS:000245393600006
dc.identifier0000-0002-4287-1969
dc.description.abstractThe reaction of post-consumer poly(ethylene terephthalate) with aqueous solutions of sulfuric acid 7.5M was investigated in terms of temperature, time and particle size. The reaction extent reached 80% in four days at 100 degrees C and 90% in 5 hours at 135 degrees C. TPA obtained was purified and considered in the same level of quality of the commercial one after tests of elemental analysis, particle size and color. It was concluded that the hydrolysis occurred preferentially at the chain ends and superficially, having as controller mechanism the acid diffusion into the polymer structure. The shrinking-core model can explain the reaction kinetics.
dc.languageeng
dc.publisherTaylor & Francis Inc
dc.relationPolymer-plastics Technology and Engineering
dc.relation1.655
dc.relation0,390
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectchemical recycling
dc.subjecthydrolysis
dc.subjectPET
dc.subjectsulfuric acid
dc.subjectTPA
dc.titlePost consumer pet depolymerization by acid hydrolysis
dc.typeArtículos de revistas


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