Effect of ionic liquid content on the crystallization kinetics and morphology of Semicrystalline Poly(vinylidene Fluoride)/Ionic liquid blends
Main Author: | |
---|---|
Publication Date: | 2020 |
Other Authors: | , , , , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | https://hdl.handle.net/1822/69502 |
Summary: | The crystallization kinetics of poly(vinylidene fluoride) (PVDF) in blends with the ionic liquid (IL) 1-ethyl-3-methylimidazolium chloride [Emim][Cl] has been studied as a function of [Emim][Cl] content up to 40 wt %. Blends were produced by a solvent casting technique from diluted solutions and solvent evaporation at a temperature higher than the melting point of PVDF followed by cooling to room temperature. Polymer phase, morphology, and crystallization behavior were evaluated. When the molten blend was crystallized from the melt, it was observed that [Emim][Cl] induces nucleation of PVDF in the electroactive and highly polar β-crystalline phase, while pure PVDF crystallizes in the α phase with the same thermal treatments. It is shown that PVDF crystal growth segregates an amorphous phase rich in IL molecules to the surface of the films and that the IL also remains in the spaces between the lamellae or between spherulites as demonstrated by scanning electronic microscopy (SEM) and polarizing optical microscope (POM) images. Differential scanning calorimetry results of isothermal crystallization show the dependence of equilibrium melting temperature and the Avrami exponent with the [Emim][Cl] content |
id |
RCAP_e636518b10d4d456eede8fdf2ddd32ba |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/69502 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Effect of ionic liquid content on the crystallization kinetics and morphology of Semicrystalline Poly(vinylidene Fluoride)/Ionic liquid blendsEngenharia e Tecnologia::Biotecnologia IndustrialScience & TechnologyThe crystallization kinetics of poly(vinylidene fluoride) (PVDF) in blends with the ionic liquid (IL) 1-ethyl-3-methylimidazolium chloride [Emim][Cl] has been studied as a function of [Emim][Cl] content up to 40 wt %. Blends were produced by a solvent casting technique from diluted solutions and solvent evaporation at a temperature higher than the melting point of PVDF followed by cooling to room temperature. Polymer phase, morphology, and crystallization behavior were evaluated. When the molten blend was crystallized from the melt, it was observed that [Emim][Cl] induces nucleation of PVDF in the electroactive and highly polar β-crystalline phase, while pure PVDF crystallizes in the α phase with the same thermal treatments. It is shown that PVDF crystal growth segregates an amorphous phase rich in IL molecules to the surface of the films and that the IL also remains in the spaces between the lamellae or between spherulites as demonstrated by scanning electronic microscopy (SEM) and polarizing optical microscope (POM) images. Differential scanning calorimetry results of isothermal crystallization show the dependence of equilibrium melting temperature and the Avrami exponent with the [Emim][Cl] contentPortuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Funding UID/FIS/04650/2020. The authors thank FEDER funds through the COMPETE 2020 Programme and National Funds through FCT under the projects PTDC/BTM-MAT/28237/2017, PTDC/EMD-EMD/28159/2017 and PTDC/FIS-MAC/28157/2017. D.M.C. and C.M.C. also thank to the FCT for grants SFRH/BPD/121526/2016 and SFRH/BPD/112547/2015, respectively. Financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) through the project MAT2016-76039-C4-1-R (AEI/FEDER, UE) (including the FEDER financial support), from the Spanish State Research Agency (AEI) and the European Regional Development Fund (ERFD) through the project PID2019-106099RB-C43 / AEI / 10.13039/501100011033. and from the Basque Government Industry and Education Departments under the ELKARTEK, HAZITEK and PIBA (PIBA-2018-06) programs, respectively, are acknowledged. CIBER-BBN is an initiative funded by the VI National R&D&I Plan 2008–2011, Iniciativa Ingenio 2010, Consolider Program. CIBER Actions are financed by the Instituto de Salud Carlos III with assistance from the European Regional Development FundACS PublicationsUniversidade do MinhoCorreia, D. M.Costa, Carlos Miguel SilvaRodríguez-Hernández, J. C.Tort Ausina, I.Biosca, L. T.Torregrosa Cabanilles, C.Meseguer-Duenãs, J. M.Lanceros-Méndez, S.Gomez Ribelles, J. L.2020-062020-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/69502engCorreia, D. M., Costa, C. M., Rodríguez-Hernández, J. C., Tort Ausina, I., et. al.(2020). Effect of Ionic Liquid Content on the Crystallization Kinetics and Morphology of Semicrystalline Poly (vinylidene Fluoride)/Ionic Liquid Blends. Crystal Growth & Design, 20(8), 4967-49791528-74831528-750510.1021/acs.cgd.0c00042https://pubs.acs.org/doi/abs/10.1021/acs.cgd.0c00042info: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:RCAAP2023-10-07T01:21:55Zoai:repositorium.sdum.uminho.pt:1822/69502Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:30:18.601496Repositório 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 |
Effect of ionic liquid content on the crystallization kinetics and morphology of Semicrystalline Poly(vinylidene Fluoride)/Ionic liquid blends |
title |
Effect of ionic liquid content on the crystallization kinetics and morphology of Semicrystalline Poly(vinylidene Fluoride)/Ionic liquid blends |
spellingShingle |
Effect of ionic liquid content on the crystallization kinetics and morphology of Semicrystalline Poly(vinylidene Fluoride)/Ionic liquid blends Correia, D. M. Engenharia e Tecnologia::Biotecnologia Industrial Science & Technology |
title_short |
Effect of ionic liquid content on the crystallization kinetics and morphology of Semicrystalline Poly(vinylidene Fluoride)/Ionic liquid blends |
title_full |
Effect of ionic liquid content on the crystallization kinetics and morphology of Semicrystalline Poly(vinylidene Fluoride)/Ionic liquid blends |
title_fullStr |
Effect of ionic liquid content on the crystallization kinetics and morphology of Semicrystalline Poly(vinylidene Fluoride)/Ionic liquid blends |
title_full_unstemmed |
Effect of ionic liquid content on the crystallization kinetics and morphology of Semicrystalline Poly(vinylidene Fluoride)/Ionic liquid blends |
title_sort |
Effect of ionic liquid content on the crystallization kinetics and morphology of Semicrystalline Poly(vinylidene Fluoride)/Ionic liquid blends |
author |
Correia, D. M. |
author_facet |
Correia, D. M. Costa, Carlos Miguel Silva Rodríguez-Hernández, J. C. Tort Ausina, I. Biosca, L. T. Torregrosa Cabanilles, C. Meseguer-Duenãs, J. M. Lanceros-Méndez, S. Gomez Ribelles, J. L. |
author_role |
author |
author2 |
Costa, Carlos Miguel Silva Rodríguez-Hernández, J. C. Tort Ausina, I. Biosca, L. T. Torregrosa Cabanilles, C. Meseguer-Duenãs, J. M. Lanceros-Méndez, S. Gomez Ribelles, J. L. |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Correia, D. M. Costa, Carlos Miguel Silva Rodríguez-Hernández, J. C. Tort Ausina, I. Biosca, L. T. Torregrosa Cabanilles, C. Meseguer-Duenãs, J. M. Lanceros-Méndez, S. Gomez Ribelles, J. L. |
dc.subject.por.fl_str_mv |
Engenharia e Tecnologia::Biotecnologia Industrial Science & Technology |
topic |
Engenharia e Tecnologia::Biotecnologia Industrial Science & Technology |
description |
The crystallization kinetics of poly(vinylidene fluoride) (PVDF) in blends with the ionic liquid (IL) 1-ethyl-3-methylimidazolium chloride [Emim][Cl] has been studied as a function of [Emim][Cl] content up to 40 wt %. Blends were produced by a solvent casting technique from diluted solutions and solvent evaporation at a temperature higher than the melting point of PVDF followed by cooling to room temperature. Polymer phase, morphology, and crystallization behavior were evaluated. When the molten blend was crystallized from the melt, it was observed that [Emim][Cl] induces nucleation of PVDF in the electroactive and highly polar β-crystalline phase, while pure PVDF crystallizes in the α phase with the same thermal treatments. It is shown that PVDF crystal growth segregates an amorphous phase rich in IL molecules to the surface of the films and that the IL also remains in the spaces between the lamellae or between spherulites as demonstrated by scanning electronic microscopy (SEM) and polarizing optical microscope (POM) images. Differential scanning calorimetry results of isothermal crystallization show the dependence of equilibrium melting temperature and the Avrami exponent with the [Emim][Cl] content |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-06 2020-06-01T00:00:00Z |
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 |
https://hdl.handle.net/1822/69502 |
url |
https://hdl.handle.net/1822/69502 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Correia, D. M., Costa, C. M., Rodríguez-Hernández, J. C., Tort Ausina, I., et. al.(2020). Effect of Ionic Liquid Content on the Crystallization Kinetics and Morphology of Semicrystalline Poly (vinylidene Fluoride)/Ionic Liquid Blends. Crystal Growth & Design, 20(8), 4967-4979 1528-7483 1528-7505 10.1021/acs.cgd.0c00042 https://pubs.acs.org/doi/abs/10.1021/acs.cgd.0c00042 |
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 |
ACS Publications |
publisher.none.fl_str_mv |
ACS Publications |
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 |
|
_version_ |
1799132806249447424 |