Sythesis and characterization of biodegradable grafted copolymers

Detalhes bibliográficos
Autor(a) principal: Moura, I.
Data de Publicação: 2010
Outros Autores: Machado, A. V., Nogueira, R., Bounor-Legare, Véronique
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/33118
Resumo: This work aimed to prepare biodegradable copolymers based on ethylene vinyl acetate and polylactic acid using transesterification reactions. The materials were prepared in the melt and then characterized by elemental analysis, infrared spectroscopy, X-ray, scanning electron microscopy, gel permeation chromatography and rheology. Selective extractions for all samples were made, and the results indicate that a maximum of 25% of EVA-g-PLA copolymer was synthesized by this method. Biodegradation tests were carried out using the standard ISO 14851 (1999), which specifies a method for determining the biochemical oxygen demand in a closed respirometer. The results demonstrate that the procedure used allowed the synthesizes of biodegradable copolymers with mechanical properties similar to conventional polymers.
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spelling Sythesis and characterization of biodegradable grafted copolymersEthyl vinyl acetatePolylactic acidTransesterificationBiodegradableThis work aimed to prepare biodegradable copolymers based on ethylene vinyl acetate and polylactic acid using transesterification reactions. The materials were prepared in the melt and then characterized by elemental analysis, infrared spectroscopy, X-ray, scanning electron microscopy, gel permeation chromatography and rheology. Selective extractions for all samples were made, and the results indicate that a maximum of 25% of EVA-g-PLA copolymer was synthesized by this method. Biodegradation tests were carried out using the standard ISO 14851 (1999), which specifies a method for determining the biochemical oxygen demand in a closed respirometer. The results demonstrate that the procedure used allowed the synthesizes of biodegradable copolymers with mechanical properties similar to conventional polymers.Universidade do Minho. Escola de Engenharia (EEng)Universidade do MinhoMoura, I.Machado, A. V.Nogueira, R.Bounor-Legare, Véronique2010-10-112010-10-11T00:00:00Zconference paperinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/33118engMoura, I.; Machado, A. V.; Nogueira, R.; Bounor-Legare, V., Sythesis ad characterization of biodegradable grafted copolymers. Semana da Escola de Engenharia 2010. Guimarães, Portugal, Universidade do Minho. Escola de Engenharia, 1-6, 2010. ISBN: 987-972-8692-59-9987-972-8692-59-9info: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:RCAAP2024-05-11T07:09:21Zoai:repositorium.sdum.uminho.pt:1822/33118Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T07:09:21Repositório 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 Sythesis and characterization of biodegradable grafted copolymers
title Sythesis and characterization of biodegradable grafted copolymers
spellingShingle Sythesis and characterization of biodegradable grafted copolymers
Moura, I.
Ethyl vinyl acetate
Polylactic acid
Transesterification
Biodegradable
title_short Sythesis and characterization of biodegradable grafted copolymers
title_full Sythesis and characterization of biodegradable grafted copolymers
title_fullStr Sythesis and characterization of biodegradable grafted copolymers
title_full_unstemmed Sythesis and characterization of biodegradable grafted copolymers
title_sort Sythesis and characterization of biodegradable grafted copolymers
author Moura, I.
author_facet Moura, I.
Machado, A. V.
Nogueira, R.
Bounor-Legare, Véronique
author_role author
author2 Machado, A. V.
Nogueira, R.
Bounor-Legare, Véronique
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Moura, I.
Machado, A. V.
Nogueira, R.
Bounor-Legare, Véronique
dc.subject.por.fl_str_mv Ethyl vinyl acetate
Polylactic acid
Transesterification
Biodegradable
topic Ethyl vinyl acetate
Polylactic acid
Transesterification
Biodegradable
description This work aimed to prepare biodegradable copolymers based on ethylene vinyl acetate and polylactic acid using transesterification reactions. The materials were prepared in the melt and then characterized by elemental analysis, infrared spectroscopy, X-ray, scanning electron microscopy, gel permeation chromatography and rheology. Selective extractions for all samples were made, and the results indicate that a maximum of 25% of EVA-g-PLA copolymer was synthesized by this method. Biodegradation tests were carried out using the standard ISO 14851 (1999), which specifies a method for determining the biochemical oxygen demand in a closed respirometer. The results demonstrate that the procedure used allowed the synthesizes of biodegradable copolymers with mechanical properties similar to conventional polymers.
publishDate 2010
dc.date.none.fl_str_mv 2010-10-11
2010-10-11T00:00:00Z
dc.type.driver.fl_str_mv conference paper
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/33118
url http://hdl.handle.net/1822/33118
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Moura, I.; Machado, A. V.; Nogueira, R.; Bounor-Legare, V., Sythesis ad characterization of biodegradable grafted copolymers. Semana da Escola de Engenharia 2010. Guimarães, Portugal, Universidade do Minho. Escola de Engenharia, 1-6, 2010. ISBN: 987-972-8692-59-9
987-972-8692-59-9
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 Universidade do Minho. Escola de Engenharia (EEng)
publisher.none.fl_str_mv Universidade do Minho. Escola de Engenharia (EEng)
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
institution RCAAP
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
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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