Crystallization, thermal and mechanical behavior of oligosebacate plasticized poly(lactic acid) films

Detalhes bibliográficos
Autor(a) principal: Inácio,Erika Martins
Data de Publicação: 2018
Outros Autores: Lima,Maria Celiana Pinheiro, Souza,Diego Holanda Saboya, Sirelli,Lys, Dias,Marcos Lopes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Polímeros (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282018000500381
Resumo: Abstract The biodegradable aliphatic oligoester oligo(trimethylene separate) (OTS) was synthesized by polycondensation and used to plasticize poly(lactic acid) (PLA). Casting films of PLA and PLA/OTS with concentrations of 1, 5 and 10 wt.% were prepared, and these films were characterized by thermal analyses, crystallinity, rheology and mechanical tests. DSC revealed the decrease in the Tg of PLA films with addition of the oligomer and a partial immiscibility. Addition of OTS to PLA slightly decrease the thermal stability as well as increase the degree of crystallinity of these films. Dynamic-mechanical analyses of casting films showed that the PLA/OTS system presented lower storage modulus than PLA and mechanical test revealed an increased in the elongation at break for PLA films containing the oligoester. The results make possible to conclude that the oligomer synthesized from bio-based monomers acts as a plasticizer of PLA increasing the PLA ductility.
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spelling Crystallization, thermal and mechanical behavior of oligosebacate plasticized poly(lactic acid) filmsplasticization poly(lactic acid)oligoesterstrimethylene sebacatecast filmsAbstract The biodegradable aliphatic oligoester oligo(trimethylene separate) (OTS) was synthesized by polycondensation and used to plasticize poly(lactic acid) (PLA). Casting films of PLA and PLA/OTS with concentrations of 1, 5 and 10 wt.% were prepared, and these films were characterized by thermal analyses, crystallinity, rheology and mechanical tests. DSC revealed the decrease in the Tg of PLA films with addition of the oligomer and a partial immiscibility. Addition of OTS to PLA slightly decrease the thermal stability as well as increase the degree of crystallinity of these films. Dynamic-mechanical analyses of casting films showed that the PLA/OTS system presented lower storage modulus than PLA and mechanical test revealed an increased in the elongation at break for PLA films containing the oligoester. The results make possible to conclude that the oligomer synthesized from bio-based monomers acts as a plasticizer of PLA increasing the PLA ductility.Associação Brasileira de Polímeros2018-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282018000500381Polímeros v.28 n.5 2018reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.1590/0104-1428.04917info:eu-repo/semantics/openAccessInácio,Erika MartinsLima,Maria Celiana PinheiroSouza,Diego Holanda SaboyaSirelli,LysDias,Marcos Lopeseng2019-01-21T00:00:00Zoai:scielo:S0104-14282018000500381Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2019-01-21T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false
dc.title.none.fl_str_mv Crystallization, thermal and mechanical behavior of oligosebacate plasticized poly(lactic acid) films
title Crystallization, thermal and mechanical behavior of oligosebacate plasticized poly(lactic acid) films
spellingShingle Crystallization, thermal and mechanical behavior of oligosebacate plasticized poly(lactic acid) films
Inácio,Erika Martins
plasticization poly(lactic acid)
oligoesters
trimethylene sebacate
cast films
title_short Crystallization, thermal and mechanical behavior of oligosebacate plasticized poly(lactic acid) films
title_full Crystallization, thermal and mechanical behavior of oligosebacate plasticized poly(lactic acid) films
title_fullStr Crystallization, thermal and mechanical behavior of oligosebacate plasticized poly(lactic acid) films
title_full_unstemmed Crystallization, thermal and mechanical behavior of oligosebacate plasticized poly(lactic acid) films
title_sort Crystallization, thermal and mechanical behavior of oligosebacate plasticized poly(lactic acid) films
author Inácio,Erika Martins
author_facet Inácio,Erika Martins
Lima,Maria Celiana Pinheiro
Souza,Diego Holanda Saboya
Sirelli,Lys
Dias,Marcos Lopes
author_role author
author2 Lima,Maria Celiana Pinheiro
Souza,Diego Holanda Saboya
Sirelli,Lys
Dias,Marcos Lopes
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Inácio,Erika Martins
Lima,Maria Celiana Pinheiro
Souza,Diego Holanda Saboya
Sirelli,Lys
Dias,Marcos Lopes
dc.subject.por.fl_str_mv plasticization poly(lactic acid)
oligoesters
trimethylene sebacate
cast films
topic plasticization poly(lactic acid)
oligoesters
trimethylene sebacate
cast films
description Abstract The biodegradable aliphatic oligoester oligo(trimethylene separate) (OTS) was synthesized by polycondensation and used to plasticize poly(lactic acid) (PLA). Casting films of PLA and PLA/OTS with concentrations of 1, 5 and 10 wt.% were prepared, and these films were characterized by thermal analyses, crystallinity, rheology and mechanical tests. DSC revealed the decrease in the Tg of PLA films with addition of the oligomer and a partial immiscibility. Addition of OTS to PLA slightly decrease the thermal stability as well as increase the degree of crystallinity of these films. Dynamic-mechanical analyses of casting films showed that the PLA/OTS system presented lower storage modulus than PLA and mechanical test revealed an increased in the elongation at break for PLA films containing the oligoester. The results make possible to conclude that the oligomer synthesized from bio-based monomers acts as a plasticizer of PLA increasing the PLA ductility.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282018000500381
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282018000500381
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0104-1428.04917
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Polímeros
publisher.none.fl_str_mv Associação Brasileira de Polímeros
dc.source.none.fl_str_mv Polímeros v.28 n.5 2018
reponame:Polímeros (São Carlos. Online)
instname:Associação Brasileira de Polímeros (ABPol)
instacron:ABPO
instname_str Associação Brasileira de Polímeros (ABPol)
instacron_str ABPO
institution ABPO
reponame_str Polímeros (São Carlos. Online)
collection Polímeros (São Carlos. Online)
repository.name.fl_str_mv Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)
repository.mail.fl_str_mv ||revista@abpol.org.br
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