On the influence of imidazolium ionic liquids on cellulose derived polymers

Detalhes bibliográficos
Autor(a) principal: Paiva, Tiago
Data de Publicação: 2019
Outros Autores: Echeverria Zabala, Coro, Godinho, Maria Helena, Almeida, Pedro L., Corvo, Marta C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/9907
Resumo: The demand for better cellulose solvents has driven the search for new and improved materials to enable the processing of this polysaccharide. Ionic liquids have been debated for a long time as interesting alternatives, but the molecular details on the solubilization mechanism have been a matter of controversy. Herein, for the first time, the structure and dynamics of hydroxypropylcellulose (HPC) liquid crystal solutions were probed in the presence of imidazolium ionic liquids (ILs), conjugating rheological measurements with magnetic resonance spectroscopy. This study provides a characterization of the solutions macroscopic behaviour, where the liquid crystalline (LC) properties were maintained. Using ILs with different side chain lengths, the influence of the hydrophobic IL domain in the solvation abilities of ILs towards a cellulose derived polymer was accessed, providing experimental evidence on these interactions.
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spelling On the influence of imidazolium ionic liquids on cellulose derived polymersHydroxypropylcelluloseIonic liquidsRheo-NMRRheologyHigh resolution magic angle spinningMolecular interactionsThe demand for better cellulose solvents has driven the search for new and improved materials to enable the processing of this polysaccharide. Ionic liquids have been debated for a long time as interesting alternatives, but the molecular details on the solubilization mechanism have been a matter of controversy. Herein, for the first time, the structure and dynamics of hydroxypropylcellulose (HPC) liquid crystal solutions were probed in the presence of imidazolium ionic liquids (ILs), conjugating rheological measurements with magnetic resonance spectroscopy. This study provides a characterization of the solutions macroscopic behaviour, where the liquid crystalline (LC) properties were maintained. Using ILs with different side chain lengths, the influence of the hydrophobic IL domain in the solvation abilities of ILs towards a cellulose derived polymer was accessed, providing experimental evidence on these interactions.ElsevierRCIPLPaiva, TiagoEcheverria Zabala, CoroGodinho, Maria HelenaAlmeida, Pedro L.Corvo, Marta C.2019-04-30T10:27:48Z2019-052019-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/9907engPAIVA, Tiago; [et al] – the influence of imidazolium ionic liquids on cellulose derived polymers. European Polymer Journal. ISSN 0014-3057. Vol. 114 (2019), pp. 353-3600014-3057https://doi.org/10.1016/j.eurpolymj.2019.02.032metadata only accessinfo: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:RCAAP2023-08-03T09:59:12Zoai:repositorio.ipl.pt:10400.21/9907Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:18:25.707479Repositório 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 On the influence of imidazolium ionic liquids on cellulose derived polymers
title On the influence of imidazolium ionic liquids on cellulose derived polymers
spellingShingle On the influence of imidazolium ionic liquids on cellulose derived polymers
Paiva, Tiago
Hydroxypropylcellulose
Ionic liquids
Rheo-NMR
Rheology
High resolution magic angle spinning
Molecular interactions
title_short On the influence of imidazolium ionic liquids on cellulose derived polymers
title_full On the influence of imidazolium ionic liquids on cellulose derived polymers
title_fullStr On the influence of imidazolium ionic liquids on cellulose derived polymers
title_full_unstemmed On the influence of imidazolium ionic liquids on cellulose derived polymers
title_sort On the influence of imidazolium ionic liquids on cellulose derived polymers
author Paiva, Tiago
author_facet Paiva, Tiago
Echeverria Zabala, Coro
Godinho, Maria Helena
Almeida, Pedro L.
Corvo, Marta C.
author_role author
author2 Echeverria Zabala, Coro
Godinho, Maria Helena
Almeida, Pedro L.
Corvo, Marta C.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Paiva, Tiago
Echeverria Zabala, Coro
Godinho, Maria Helena
Almeida, Pedro L.
Corvo, Marta C.
dc.subject.por.fl_str_mv Hydroxypropylcellulose
Ionic liquids
Rheo-NMR
Rheology
High resolution magic angle spinning
Molecular interactions
topic Hydroxypropylcellulose
Ionic liquids
Rheo-NMR
Rheology
High resolution magic angle spinning
Molecular interactions
description The demand for better cellulose solvents has driven the search for new and improved materials to enable the processing of this polysaccharide. Ionic liquids have been debated for a long time as interesting alternatives, but the molecular details on the solubilization mechanism have been a matter of controversy. Herein, for the first time, the structure and dynamics of hydroxypropylcellulose (HPC) liquid crystal solutions were probed in the presence of imidazolium ionic liquids (ILs), conjugating rheological measurements with magnetic resonance spectroscopy. This study provides a characterization of the solutions macroscopic behaviour, where the liquid crystalline (LC) properties were maintained. Using ILs with different side chain lengths, the influence of the hydrophobic IL domain in the solvation abilities of ILs towards a cellulose derived polymer was accessed, providing experimental evidence on these interactions.
publishDate 2019
dc.date.none.fl_str_mv 2019-04-30T10:27:48Z
2019-05
2019-05-01T00:00:00Z
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 http://hdl.handle.net/10400.21/9907
url http://hdl.handle.net/10400.21/9907
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv PAIVA, Tiago; [et al] – the influence of imidazolium ionic liquids on cellulose derived polymers. European Polymer Journal. ISSN 0014-3057. Vol. 114 (2019), pp. 353-360
0014-3057
https://doi.org/10.1016/j.eurpolymj.2019.02.032
dc.rights.driver.fl_str_mv metadata only access
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rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
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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
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