Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv lignin

[EN] Chitosan-based composite membranes with fractionated kraft and organosolv lignin were prepared by solvent casting. A small lignin fraction (1%) was added to the neat chitosan to obtain a good distribution. The influence of lignin extraction with ethyl acetate and consequently ethanol on the die...

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Authors: Wolf, Mark Henning|||0000-0003-3033-6616, B. Pascual-Jose|||0000-0001-7562-916X, Teruel-Juanes, Roberto|||0000-0002-0190-4445, Ribes-Greus, A.|||0000-0003-2460-8291, Izaguirre, Nagore, Labidi, J.
Format: article
Publication Date:2024
Country:España
Institution:Universitat Politècnica de València (UPV)
Repository:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Language:English
OAI Identifier:oai:riunet.upv.es:10251/214326
Online Access:https://riunet.upv.es/handle/10251/214326
Access Level:Open access
Keyword:Dielectric thermal analysis (DETA)
Biobased materials
Chitosan
Lignin
Solvent fractionation
MAQUINAS Y MOTORES TERMICOS
TECNOLOGIA ELECTRONICA
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oai_identifier_str oai:riunet.upv.es:10251/214326
network_acronym_str ES
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repository_id_str
spelling Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv ligninWolf, Mark Henning|||0000-0003-3033-6616B. Pascual-Jose|||0000-0001-7562-916XTeruel-Juanes, Roberto|||0000-0002-0190-4445Ribes-Greus, A.|||0000-0003-2460-8291Izaguirre, NagoreLabidi, J.Dielectric thermal analysis (DETA)Biobased materialsChitosanLigninSolvent fractionationMAQUINAS Y MOTORES TERMICOSTECNOLOGIA ELECTRONICA[EN] Chitosan-based composite membranes with fractionated kraft and organosolv lignin were prepared by solvent casting. A small lignin fraction (1%) was added to the neat chitosan to obtain a good distribution. The influence of lignin extraction with ethyl acetate and consequently ethanol on the dielectric and conductive properties of the composites was investigated by dielectric thermal analysis (DETA). Overall, the chitosan-lignin composites exhibit three relaxation mechanisms (ß, ßwet, and ¿) and two conductivity phenomena (¿ and MWS). FTIR analysis showed that the composites with organosolv lignin fractions have fewer hydroxyl groups than those with kraft lignin, which decreases slightly further for both after ethanol extraction. The lignin fractions with lower molecular weight and higher OH content show stronger interactions with chitosan, due to hydrogen bonding. These interactions affect the thermal activation and cooperativity of the ß-, ßwet, and ¿-relaxation. Furthermore, the kraft lignin fractions with many polar groups are very compatible with the chitosan matrix, resulting in a more compact structure and higher fragility. The membranes CS OLEA and CS KLE have a lower electron conductivity and a higher proton conductivity. Thus, they have promising conductivity properties for fuel cell applications.This study forms part of the Advanced Materials programme and was supported by the Spanish Ministry of Science and Innovation with funding from the European Union NextGenerationEU (PRTR-C17.11) and by the Generalitat Valenciana as project INNOMAT-H2 (MFA/2022/041). The authors also thank the Spanish Ministry of Universities for the pre-doctoral FPU grant of M.H. Wolf (FPU21/00853), the Basque Government for the grant of N. Izaguirre (PIF19-183) and the Universitat Polit`ecnica de Val`encia for the PAID-10-19 SUB.1 grant of R.Teruel-Juanes (SP20190049). The authors are also grateful to Karel Beirnaert for experimental assistance in material characterisation.ElsevierDepartamento de Ingeniería Química y NuclearDepartamento de Ingeniería ElectrónicaDepartamento de Máquinas y Motores TérmicosEscuela Técnica Superior de Ingeniería Aeroespacial y Diseño IndustrialDepartamento de Ingeniería EléctricaEscuela Técnica Superior de Ingeniería Industrial Instituto Universitario de Investigación de Tecnología de los Materiales de la UPVEscuela Politécnica Superior de AlcoyEusko JaurlaritzaEuropean CommissionGENERALITAT VALENCIANAMinisterio de UniversidadesUniversitat Politècnica de ValènciaRepositorio Institucional de la Universitat Politècnica de València Riunet20242024-03-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/214326reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengGeneralitat Valenciana https://doi.org/10.13039/501100003359 Programa Materiales con Funcionalidades Avanzadas para la Nueva Transformación Tecnológica MFA%2F2022%2F041 Diseño y validación de materiales innovadores para su desarrollo como electrolitos de pilas de combustible de intercambio protónico en vehículosUniversitat Politècnica de València https://doi.org/10.13039/501100004233 SP20190049Eusko Jaurlaritza Eusko Jaurlaritza PIF19-183Ministerio de Universidades MIU FPU21%2F00853open accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento (by)http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/2143262026-06-13T07:49:27Z
dc.title.none.fl_str_mv Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv lignin
title Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv lignin
spellingShingle Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv lignin
Wolf, Mark Henning|||0000-0003-3033-6616
Dielectric thermal analysis (DETA)
Biobased materials
Chitosan
Lignin
Solvent fractionation
MAQUINAS Y MOTORES TERMICOS
TECNOLOGIA ELECTRONICA
title_short Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv lignin
title_full Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv lignin
title_fullStr Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv lignin
title_full_unstemmed Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv lignin
title_sort Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv lignin
dc.creator.none.fl_str_mv Wolf, Mark Henning|||0000-0003-3033-6616
B. Pascual-Jose|||0000-0001-7562-916X
Teruel-Juanes, Roberto|||0000-0002-0190-4445
Ribes-Greus, A.|||0000-0003-2460-8291
Izaguirre, Nagore
Labidi, J.
author Wolf, Mark Henning|||0000-0003-3033-6616
author_facet Wolf, Mark Henning|||0000-0003-3033-6616
B. Pascual-Jose|||0000-0001-7562-916X
Teruel-Juanes, Roberto|||0000-0002-0190-4445
Ribes-Greus, A.|||0000-0003-2460-8291
Izaguirre, Nagore
Labidi, J.
author_role author
author2 B. Pascual-Jose|||0000-0001-7562-916X
Teruel-Juanes, Roberto|||0000-0002-0190-4445
Ribes-Greus, A.|||0000-0003-2460-8291
Izaguirre, Nagore
Labidi, J.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Química y Nuclear
Departamento de Ingeniería Electrónica
Departamento de Máquinas y Motores Térmicos
Escuela Técnica Superior de Ingeniería Aeroespacial y Diseño Industrial
Departamento de Ingeniería Eléctrica
Escuela Técnica Superior de Ingeniería Industrial
 Instituto Universitario de Investigación de Tecnología de los Materiales de la UPV
Escuela Politécnica Superior de Alcoy
Eusko Jaurlaritza
European Commission
GENERALITAT VALENCIANA
Ministerio de Universidades
Universitat Politècnica de València
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Dielectric thermal analysis (DETA)
Biobased materials
Chitosan
Lignin
Solvent fractionation
MAQUINAS Y MOTORES TERMICOS
TECNOLOGIA ELECTRONICA
topic Dielectric thermal analysis (DETA)
Biobased materials
Chitosan
Lignin
Solvent fractionation
MAQUINAS Y MOTORES TERMICOS
TECNOLOGIA ELECTRONICA
description [EN] Chitosan-based composite membranes with fractionated kraft and organosolv lignin were prepared by solvent casting. A small lignin fraction (1%) was added to the neat chitosan to obtain a good distribution. The influence of lignin extraction with ethyl acetate and consequently ethanol on the dielectric and conductive properties of the composites was investigated by dielectric thermal analysis (DETA). Overall, the chitosan-lignin composites exhibit three relaxation mechanisms (ß, ßwet, and ¿) and two conductivity phenomena (¿ and MWS). FTIR analysis showed that the composites with organosolv lignin fractions have fewer hydroxyl groups than those with kraft lignin, which decreases slightly further for both after ethanol extraction. The lignin fractions with lower molecular weight and higher OH content show stronger interactions with chitosan, due to hydrogen bonding. These interactions affect the thermal activation and cooperativity of the ß-, ßwet, and ¿-relaxation. Furthermore, the kraft lignin fractions with many polar groups are very compatible with the chitosan matrix, resulting in a more compact structure and higher fragility. The membranes CS OLEA and CS KLE have a lower electron conductivity and a higher proton conductivity. Thus, they have promising conductivity properties for fuel cell applications.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-03-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/214326
url https://riunet.upv.es/handle/10251/214326
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Generalitat Valenciana https://doi.org/10.13039/501100003359 Programa Materiales con Funcionalidades Avanzadas para la Nueva Transformación Tecnológica MFA%2F2022%2F041 Diseño y validación de materiales innovadores para su desarrollo como electrolitos de pilas de combustible de intercambio protónico en vehículos
Universitat Politècnica de València https://doi.org/10.13039/501100004233 SP20190049
Eusko Jaurlaritza Eusko Jaurlaritza PIF19-183
Ministerio de Universidades MIU FPU21%2F00853
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
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
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
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:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869413668129603584
score 15,811543

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