Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline

Autores
Lizarraga, Leonardo; Verdejo, T.; Molina, Fernando Víctor; Gonzalez Vila, F.J.
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Pyrolysis-gas chromatography/mass spectrometry (Py-CG/MS) has been applied to study and compare the composition of two electrochemically synthesized polyaniline (PANI) forms: fully reduced leucoemeraldine (LE) and intermediately oxidized emeraldine (EM). The different PANI forms were electrochemically synthesized using cyclic voltammetry. They were dedoped by stirring for 24 h in ammoniacal solutions. Leucoemeraldine and emeraldine pyrograms presented differences in the relative intensity of their fragment signals. Emeraldine pyrograms presented a higher relative intensity of the signals associated to oxidized fragments (i.e. quinone imine) than leucoemeraldine pyrograms. On the other hand, polymer samples synthesized under different anodic potentials showed small differences, consistent with a higher degree of crosslinking at higher anodic potentials. The results obtained indicate that Py-GC/MS may be used for identification among different oxidation states in aryl amine polymers.
Fil: Lizarraga, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Verdejo, T.. Instituto de Recursos Naturales y Agrobiologia; España. Consejo Superior de Investigaciones Científicas; España
Fil: Molina, Fernando Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Gonzalez Vila, F.J.. Consejo Superior de Investigaciones Científicas; España. Instituto de Recursos Naturales y Agrobiologia; España
Materia
Polymer structure
Analytical pyrolysis
Crosslinking
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/102965
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network_name_str CONICET Digital (CONICET)
spelling Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyanilineLizarraga, LeonardoVerdejo, T.Molina, Fernando VíctorGonzalez Vila, F.J.Polymer structureAnalytical pyrolysisCrosslinkinghttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Pyrolysis-gas chromatography/mass spectrometry (Py-CG/MS) has been applied to study and compare the composition of two electrochemically synthesized polyaniline (PANI) forms: fully reduced leucoemeraldine (LE) and intermediately oxidized emeraldine (EM). The different PANI forms were electrochemically synthesized using cyclic voltammetry. They were dedoped by stirring for 24 h in ammoniacal solutions. Leucoemeraldine and emeraldine pyrograms presented differences in the relative intensity of their fragment signals. Emeraldine pyrograms presented a higher relative intensity of the signals associated to oxidized fragments (i.e. quinone imine) than leucoemeraldine pyrograms. On the other hand, polymer samples synthesized under different anodic potentials showed small differences, consistent with a higher degree of crosslinking at higher anodic potentials. The results obtained indicate that Py-GC/MS may be used for identification among different oxidation states in aryl amine polymers.Fil: Lizarraga, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Verdejo, T.. Instituto de Recursos Naturales y Agrobiologia; España. Consejo Superior de Investigaciones Científicas; EspañaFil: Molina, Fernando Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Gonzalez Vila, F.J.. Consejo Superior de Investigaciones Científicas; España. Instituto de Recursos Naturales y Agrobiologia; EspañaElsevier Science2007-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/102965Lizarraga, Leonardo; Verdejo, T.; Molina, Fernando Víctor; Gonzalez Vila, F.J.; Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline; Elsevier Science; Journal of Analytical and Applied Pyrolysis; 80; 2; 10-2007; 485-4880165-2370CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0165237007000368info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaap.2007.02.007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:19:14Zoai:ri.conicet.gov.ar:11336/102965instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:19:14.412CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline
title Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline
spellingShingle Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline
Lizarraga, Leonardo
Polymer structure
Analytical pyrolysis
Crosslinking
title_short Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline
title_full Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline
title_fullStr Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline
title_full_unstemmed Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline
title_sort Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline
dc.creator.none.fl_str_mv Lizarraga, Leonardo
Verdejo, T.
Molina, Fernando Víctor
Gonzalez Vila, F.J.
author Lizarraga, Leonardo
author_facet Lizarraga, Leonardo
Verdejo, T.
Molina, Fernando Víctor
Gonzalez Vila, F.J.
author_role author
author2 Verdejo, T.
Molina, Fernando Víctor
Gonzalez Vila, F.J.
author2_role author
author
author
dc.subject.none.fl_str_mv Polymer structure
Analytical pyrolysis
Crosslinking
topic Polymer structure
Analytical pyrolysis
Crosslinking
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Pyrolysis-gas chromatography/mass spectrometry (Py-CG/MS) has been applied to study and compare the composition of two electrochemically synthesized polyaniline (PANI) forms: fully reduced leucoemeraldine (LE) and intermediately oxidized emeraldine (EM). The different PANI forms were electrochemically synthesized using cyclic voltammetry. They were dedoped by stirring for 24 h in ammoniacal solutions. Leucoemeraldine and emeraldine pyrograms presented differences in the relative intensity of their fragment signals. Emeraldine pyrograms presented a higher relative intensity of the signals associated to oxidized fragments (i.e. quinone imine) than leucoemeraldine pyrograms. On the other hand, polymer samples synthesized under different anodic potentials showed small differences, consistent with a higher degree of crosslinking at higher anodic potentials. The results obtained indicate that Py-GC/MS may be used for identification among different oxidation states in aryl amine polymers.
Fil: Lizarraga, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Verdejo, T.. Instituto de Recursos Naturales y Agrobiologia; España. Consejo Superior de Investigaciones Científicas; España
Fil: Molina, Fernando Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Gonzalez Vila, F.J.. Consejo Superior de Investigaciones Científicas; España. Instituto de Recursos Naturales y Agrobiologia; España
description Pyrolysis-gas chromatography/mass spectrometry (Py-CG/MS) has been applied to study and compare the composition of two electrochemically synthesized polyaniline (PANI) forms: fully reduced leucoemeraldine (LE) and intermediately oxidized emeraldine (EM). The different PANI forms were electrochemically synthesized using cyclic voltammetry. They were dedoped by stirring for 24 h in ammoniacal solutions. Leucoemeraldine and emeraldine pyrograms presented differences in the relative intensity of their fragment signals. Emeraldine pyrograms presented a higher relative intensity of the signals associated to oxidized fragments (i.e. quinone imine) than leucoemeraldine pyrograms. On the other hand, polymer samples synthesized under different anodic potentials showed small differences, consistent with a higher degree of crosslinking at higher anodic potentials. The results obtained indicate that Py-GC/MS may be used for identification among different oxidation states in aryl amine polymers.
publishDate 2007
dc.date.none.fl_str_mv 2007-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/102965
Lizarraga, Leonardo; Verdejo, T.; Molina, Fernando Víctor; Gonzalez Vila, F.J.; Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline; Elsevier Science; Journal of Analytical and Applied Pyrolysis; 80; 2; 10-2007; 485-488
0165-2370
CONICET Digital
CONICET
url http://hdl.handle.net/11336/102965
identifier_str_mv Lizarraga, Leonardo; Verdejo, T.; Molina, Fernando Víctor; Gonzalez Vila, F.J.; Pyrolysis–gas chromatography/mass spectrometry applied to the identification of different states of polyaniline; Elsevier Science; Journal of Analytical and Applied Pyrolysis; 80; 2; 10-2007; 485-488
0165-2370
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0165237007000368
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaap.2007.02.007
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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