Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide

"This is the peer reviewed version of the following article: Hortós, M. , Anakabe, J. , Arrillaga, A. , Espino, S. and Bou, J. J. (2019), Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide. Polym. Int., 68: 1767-1...

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Detalles Bibliográficos
Autores: Hortós Lobera, Martí, Anakabe, Jon, Arrillaga, Alex, Espino, Sebastian, Bou Serra, Jordi|||0000-0001-7948-8720
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/170749
Acceso en línea:https://hdl.handle.net/2117/170749
https://dx.doi.org/10.1002/pi.5887
Access Level:acceso abierto
Palabra clave:Polylactic acid
Biopolymers
Polylactide
Molecular weight
Annealing
Crystalline morphology
Biopolimers
Àcid polilàctic
Àrees temàtiques de la UPC::Enginyeria química
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network_acronym_str ES
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repository_id_str
spelling Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactideHortós Lobera, MartíAnakabe, JonArrillaga, AlexEspino, SebastianBou Serra, Jordi|||0000-0001-7948-8720Polylactic acidBiopolymersPolylactideMolecular weightAnnealingCrystalline morphologyBiopolimersÀcid polilàcticÀrees temàtiques de la UPC::Enginyeria química"This is the peer reviewed version of the following article: Hortós, M. , Anakabe, J. , Arrillaga, A. , Espino, S. and Bou, J. J. (2019), Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide. Polym. Int., 68: 1767-1775, which has been published in final form at https://doi.org/10.1002/pi.5887. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions."The thermomechanical properties of poly(lactide) (PLA) are strongly related to its semicrystalline microstructure and morphology. Thermal annealing is a strategy to improve the crystallinity of PLA. However, the different techniques and specimen types needed for each kind of characterization could lead to misleading conclusions. In this work, annealed samples of three PLA grades with different molecular weights were studied by DSC, wide angle X-ray scattering and polarized optical microscopy (POM) and the results are related to their thermomechanical and impact properties. Special focus is put on the POM results obtained by different approaches and the suitability of each of them to be related to the thermomechanical properties. By annealing medium molecular weight PLA specimens at 140 °C an important increase of the heat distortion temperature was obtained, which was not related to the spherulite size but to the combination of high crystallinity degree together with high a/a' crystal type ratio. However, the impact properties of annealed PLA decreased with increase in the annealing temperature according to an increment in crystallinity and in the a/a' crystal ratio.Peer Reviewed20192019-01-0120192019-10-24journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/170749https://dx.doi.org/10.1002/pi.5887reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1707492026-05-27T15:37:01Z
dc.title.none.fl_str_mv Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide
title Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide
spellingShingle Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide
Hortós Lobera, Martí
Polylactic acid
Biopolymers
Polylactide
Molecular weight
Annealing
Crystalline morphology
Biopolimers
Àcid polilàctic
Àrees temàtiques de la UPC::Enginyeria química
title_short Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide
title_full Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide
title_fullStr Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide
title_full_unstemmed Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide
title_sort Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide
dc.creator.none.fl_str_mv Hortós Lobera, Martí
Anakabe, Jon
Arrillaga, Alex
Espino, Sebastian
Bou Serra, Jordi|||0000-0001-7948-8720
author Hortós Lobera, Martí
author_facet Hortós Lobera, Martí
Anakabe, Jon
Arrillaga, Alex
Espino, Sebastian
Bou Serra, Jordi|||0000-0001-7948-8720
author_role author
author2 Anakabe, Jon
Arrillaga, Alex
Espino, Sebastian
Bou Serra, Jordi|||0000-0001-7948-8720
author2_role author
author
author
author
dc.subject.none.fl_str_mv Polylactic acid
Biopolymers
Polylactide
Molecular weight
Annealing
Crystalline morphology
Biopolimers
Àcid polilàctic
Àrees temàtiques de la UPC::Enginyeria química
topic Polylactic acid
Biopolymers
Polylactide
Molecular weight
Annealing
Crystalline morphology
Biopolimers
Àcid polilàctic
Àrees temàtiques de la UPC::Enginyeria química
description "This is the peer reviewed version of the following article: Hortós, M. , Anakabe, J. , Arrillaga, A. , Espino, S. and Bou, J. J. (2019), Effect of the annealing procedure and the molecular weight on the crystalline phase morphology and thermal properties of polylactide. Polym. Int., 68: 1767-1775, which has been published in final form at https://doi.org/10.1002/pi.5887. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions."
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-01-01
2019
2019-10-24
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/170749
https://dx.doi.org/10.1002/pi.5887
url https://hdl.handle.net/2117/170749
https://dx.doi.org/10.1002/pi.5887
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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