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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/102965
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:49:53Zoai: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:34982025-09-29 09:49:53.927CONICET 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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844613541115461632 |
score |
13.070432 |