Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties

Detalhes bibliográficos
Autor(a) principal: Cordeiro, N.
Data de Publicação: 1998
Outros Autores: Belgacem, N.M., Gandini, A., Neto, C.Pascoal
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.13/3371
Resumo: Suberin samples, obtained by alkaline methanolysis from cork (Quercus suber L.), were submitted to various physical characterizations; DSC, TGA, optical microscopy, density and rheological properties. A sub stantial proportion of these oligomers possessed a microcrystalline character with a melting range between 0 and 50°C. The amorphous part was liquid at room temperature and did not display a detectable glass transition upon cooling because of its wide molecular weight distribution. The viscous behaviour of suberin at room temperature was both plastic and thixotropic because of the structuring role of the microcrystals.
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spelling Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological propertiesCork of Quercus suber L.Alkaline methanolysisSuberinThermal characterizationRheological propertiesCrystallinityDensity.Faculdade de Ciências Exatas e da EngenhariaSuberin samples, obtained by alkaline methanolysis from cork (Quercus suber L.), were submitted to various physical characterizations; DSC, TGA, optical microscopy, density and rheological properties. A sub stantial proportion of these oligomers possessed a microcrystalline character with a melting range between 0 and 50°C. The amorphous part was liquid at room temperature and did not display a detectable glass transition upon cooling because of its wide molecular weight distribution. The viscous behaviour of suberin at room temperature was both plastic and thixotropic because of the structuring role of the microcrystals.ElsevierDigitUMaCordeiro, N.Belgacem, N.M.Gandini, A.Neto, C.Pascoal2021-05-05T15:28:23Z1998-01-01T00:00:00Z1998-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.13/3371engCordeiro, N., Belgacem, N. M., Gandini, A., & Neto, C. P. (1998). Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties. Bioresource technology, 63(2), 153-158.10.1016/S0960-8524(97)00073-4info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-05T12:56:19Zoai:digituma.uma.pt:10400.13/3371Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:06:25.440414Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties
title Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties
spellingShingle Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties
Cordeiro, N.
Cork of Quercus suber L.
Alkaline methanolysis
Suberin
Thermal characterization
Rheological properties
Crystallinity
Density
.
Faculdade de Ciências Exatas e da Engenharia
title_short Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties
title_full Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties
title_fullStr Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties
title_full_unstemmed Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties
title_sort Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties
author Cordeiro, N.
author_facet Cordeiro, N.
Belgacem, N.M.
Gandini, A.
Neto, C.Pascoal
author_role author
author2 Belgacem, N.M.
Gandini, A.
Neto, C.Pascoal
author2_role author
author
author
dc.contributor.none.fl_str_mv DigitUMa
dc.contributor.author.fl_str_mv Cordeiro, N.
Belgacem, N.M.
Gandini, A.
Neto, C.Pascoal
dc.subject.por.fl_str_mv Cork of Quercus suber L.
Alkaline methanolysis
Suberin
Thermal characterization
Rheological properties
Crystallinity
Density
.
Faculdade de Ciências Exatas e da Engenharia
topic Cork of Quercus suber L.
Alkaline methanolysis
Suberin
Thermal characterization
Rheological properties
Crystallinity
Density
.
Faculdade de Ciências Exatas e da Engenharia
description Suberin samples, obtained by alkaline methanolysis from cork (Quercus suber L.), were submitted to various physical characterizations; DSC, TGA, optical microscopy, density and rheological properties. A sub stantial proportion of these oligomers possessed a microcrystalline character with a melting range between 0 and 50°C. The amorphous part was liquid at room temperature and did not display a detectable glass transition upon cooling because of its wide molecular weight distribution. The viscous behaviour of suberin at room temperature was both plastic and thixotropic because of the structuring role of the microcrystals.
publishDate 1998
dc.date.none.fl_str_mv 1998-01-01T00:00:00Z
1998-01-01T00:00:00Z
2021-05-05T15:28:23Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.13/3371
url http://hdl.handle.net/10400.13/3371
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Cordeiro, N., Belgacem, N. M., Gandini, A., & Neto, C. P. (1998). Cork suberin as a new source of chemicals: 2. crystallinity, thermal and rheological properties. Bioresource technology, 63(2), 153-158.
10.1016/S0960-8524(97)00073-4
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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