Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blends

Three semicrystalline polyesters, poly(lactic acid), poly(caprolactone) and poly(butylene succinate) (PLA, PCL and PBS) were melt blended to prepare binary and ternary systems of selected compositions. In binary blends with a sea-island morphology, each of the polymers is either the major or dispers...

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Autores: Fenni, Seif Eddine, Wang, Jun, Haddaoui, Nacerddine, Favis, Basil D., Müller Sánchez, Alejandro Jesús, Cavallo, Dario
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/34338
Acceso en línea:http://hdl.handle.net/10810/34338
Access Level:acceso abierto
Palabra clave:self-nucleation
ternary blends
partial-wetting
sea-island
polylactic acid
polycaprolactone
poly(butylene succinate)
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spelling Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blendsFenni, Seif EddineWang, JunHaddaoui, NacerddineFavis, Basil D.Müller Sánchez, Alejandro JesúsCavallo, Darioself-nucleationternary blendspartial-wettingsea-islandpolylactic acidpolycaprolactonepoly(butylene succinate)Three semicrystalline polyesters, poly(lactic acid), poly(caprolactone) and poly(butylene succinate) (PLA, PCL and PBS) were melt blended to prepare binary and ternary systems of selected compositions. In binary blends with a sea-island morphology, each of the polymers is either the major or dispersed phase in the various samples. Analogously, different ternary blends with a “partial-wetting” morphology are prepared, displaying droplets of PLA, PCL or PBS minor phase located at the interface between the other two major components. The crystallization behaviour of the three phases has been investigated under non-isothermal conditions via differential scanning calorimetry. In binary blends, a distinct effect of morphology on nucleation was observed, with the minor phase displaying fractionated crystallization, as a consequence of the droplet concentration being higher than that of nucleating impurities. Partially-wetting droplets of the different polymers in ternary blend show instead non-isothermal crystallization analogous to the bulk material, due to the much larger domain size. The self-nucleation behaviour of the polyesters in the binary and ternary blends was then compared to that of the neat polymers. It was found that the very large number of self-nuclei generated by the self-nucleation protocol (in Domain II or self-nucleation Domain) applied to the samples, completely overrules any effect of blend type or composition, so that the crystallization temperature is exclusively related to the self-nucleation temperature. However, when melting memory is erased and sufficiently high melting temperatures are employed, the role of heterogeneous nucleation is apparent, and the crystallization of the given blend component is highly dependent on the particular morphology.Project H2020-MSCA-RISE-2017-778092 « BIODEST ».ElservierEuropean Commission201920192019info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/34338reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/EC/H2020/778092https://www.sciencedirect.com/science/article/pii/S0040603119300140info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/CC-BY-NC-NDoai:addi.ehu.eus:10810/343382026-06-18T09:23:17Z
dc.title.none.fl_str_mv Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blends
title Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blends
spellingShingle Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blends
Fenni, Seif Eddine
self-nucleation
ternary blends
partial-wetting
sea-island
polylactic acid
polycaprolactone
poly(butylene succinate)
title_short Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blends
title_full Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blends
title_fullStr Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blends
title_full_unstemmed Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blends
title_sort Crystallization and self-nucleation of PLA, PBS and PCL in their immiscible binary and ternary blends
dc.creator.none.fl_str_mv Fenni, Seif Eddine
Wang, Jun
Haddaoui, Nacerddine
Favis, Basil D.
Müller Sánchez, Alejandro Jesús
Cavallo, Dario
author Fenni, Seif Eddine
author_facet Fenni, Seif Eddine
Wang, Jun
Haddaoui, Nacerddine
Favis, Basil D.
Müller Sánchez, Alejandro Jesús
Cavallo, Dario
author_role author
author2 Wang, Jun
Haddaoui, Nacerddine
Favis, Basil D.
Müller Sánchez, Alejandro Jesús
Cavallo, Dario
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
dc.subject.none.fl_str_mv self-nucleation
ternary blends
partial-wetting
sea-island
polylactic acid
polycaprolactone
poly(butylene succinate)
topic self-nucleation
ternary blends
partial-wetting
sea-island
polylactic acid
polycaprolactone
poly(butylene succinate)
description Three semicrystalline polyesters, poly(lactic acid), poly(caprolactone) and poly(butylene succinate) (PLA, PCL and PBS) were melt blended to prepare binary and ternary systems of selected compositions. In binary blends with a sea-island morphology, each of the polymers is either the major or dispersed phase in the various samples. Analogously, different ternary blends with a “partial-wetting” morphology are prepared, displaying droplets of PLA, PCL or PBS minor phase located at the interface between the other two major components. The crystallization behaviour of the three phases has been investigated under non-isothermal conditions via differential scanning calorimetry. In binary blends, a distinct effect of morphology on nucleation was observed, with the minor phase displaying fractionated crystallization, as a consequence of the droplet concentration being higher than that of nucleating impurities. Partially-wetting droplets of the different polymers in ternary blend show instead non-isothermal crystallization analogous to the bulk material, due to the much larger domain size. The self-nucleation behaviour of the polyesters in the binary and ternary blends was then compared to that of the neat polymers. It was found that the very large number of self-nuclei generated by the self-nucleation protocol (in Domain II or self-nucleation Domain) applied to the samples, completely overrules any effect of blend type or composition, so that the crystallization temperature is exclusively related to the self-nucleation temperature. However, when melting memory is erased and sufficiently high melting temperatures are employed, the role of heterogeneous nucleation is apparent, and the crystallization of the given blend component is highly dependent on the particular morphology.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/34338
url http://hdl.handle.net/10810/34338
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/EC/H2020/778092
https://www.sciencedirect.com/science/article/pii/S0040603119300140
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
CC-BY-NC-ND
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
CC-BY-NC-ND
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elservier
publisher.none.fl_str_mv Elservier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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