Polymer Photodegradation Followed by Infrared: A Tutorial

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorMena, Rodrigo L.-
Autor(es): dc.creatorCacuro, Thiago A.-
Autor(es): dc.creatorFreitas, Amanda S. M. de-
Autor(es): dc.creatorRangel, Elidiane C. [UNESP]-
Autor(es): dc.creatorWaldman, Walter R.-
Data de aceite: dc.date.accessioned2022-02-22T01:01:55Z-
Data de disponibilização: dc.date.available2022-02-22T01:01:55Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.21577/1984-6835.20200077-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/210531-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/210531-
Descrição: dc.descriptionSince the first scientific study published by August Wilhelm Hofmann at 1861, where he found the role of oxygen in the degradation of weathered materials, a lot of progress has been made regarding the understanding of the mechanisms that lead to the polymer degradation. In this work, it was proposed a protocol to study the photochemical degradation of polymers using as probes the absorption of hydroxyl, carbonyl, and vinyl, as followed by the infrared spectroscopy. As a result, it is possible to assess the evolution of the chemical groups associated with the polymer degradation comparing the absorption as a function of degradation time, for films with the same thickness, or comparing the absorption of the chemical groups associated with the polymer degradation related to a reference band, for polymer or pieces with different thicknesses. We discuss also the general mechanism of photodegradation for polyolefins; the difference between using the area of the band vs the intensity of the peak; and the construction of a lab-made ageing chamber, and the role of each part.-
Descrição: dc.descriptionUniv Fed Sao Carlos, Campus Sorocaba, BR-18052780 Sorocaba, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Av Tres Marco 511, BR-18087180 Sorocaba, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Av Tres Marco 511, BR-18087180 Sorocaba, SP, Brazil-
Formato: dc.format959-968-
Idioma: dc.languagept_BR-
Publicador: dc.publisherBrazilian Chemical Soc-
Relação: dc.relationRevista Virtual De Quimica-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectPolypropylene-
Palavras-chave: dc.subjectphotochemical degradation-
Palavras-chave: dc.subjectcarbonyl index-
Palavras-chave: dc.subjectoxidation-
Palavras-chave: dc.subjectradical reactions-
Título: dc.titlePolymer Photodegradation Followed by Infrared: A Tutorial-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.