Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface

Autores
Aldana, Ana Agustina; Strumia, Miriam Cristina; Yudi, Lidia Mabel; Martinelli, Marisa; Juárez, Ana Valeria
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The electrochemical behavior of the cationic polymer chitosan-gtmac (Ch-GTMAC), at the polarized water / 1,2-dichloroethane interface was studied. This polymer was obtained by nucleophilic reaction of chitosan (Ch) with glycidyltrimethylammonium chloride groups (GTMAC). The voltammetric response was found to be dependent on the concentration of the polymer, on pH of the aqueous phase, and on the nature of the organic electrolyte. The results suggest a weak adsorption of the polymer coupled to the transfer towards the organic phase. Desorption process is quasi-reversible, and there is not interaction between adsorbents. From the analysis of desorption charge, it was possible to determine the substitution degree of the polymer
Fil: Aldana, Ana Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Strumia, Miriam Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Yudi, Lidia Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones En Físicoquímica de Córdoba; Argentina
Fil: Martinelli, Marisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Juárez, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones En Físicoquímica de Córdoba; Argentina
Materia
Liquid/Liquid Interfaces Liquid/Liquid Interfaces
Chitosanchitosan
Quaternized Chitosan Queternized Chitosan
Cationic Polyelectrolytes Cationic Polyelectrolites
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/13833
Acceder
id CONICETDig_6719f52068910604b235f1cea9ba441f
oai_identifier_str oai:ri.conicet.gov.ar:11336/13833
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interfaceAldana, Ana AgustinaStrumia, Miriam CristinaYudi, Lidia MabelMartinelli, MarisaJuárez, Ana ValeriaLiquid/Liquid Interfaces Liquid/Liquid InterfacesChitosanchitosanQuaternized Chitosan Queternized ChitosanCationic Polyelectrolytes Cationic Polyelectroliteshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The electrochemical behavior of the cationic polymer chitosan-gtmac (Ch-GTMAC), at the polarized water / 1,2-dichloroethane interface was studied. This polymer was obtained by nucleophilic reaction of chitosan (Ch) with glycidyltrimethylammonium chloride groups (GTMAC). The voltammetric response was found to be dependent on the concentration of the polymer, on pH of the aqueous phase, and on the nature of the organic electrolyte. The results suggest a weak adsorption of the polymer coupled to the transfer towards the organic phase. Desorption process is quasi-reversible, and there is not interaction between adsorbents. From the analysis of desorption charge, it was possible to determine the substitution degree of the polymerFil: Aldana, Ana Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); ArgentinaFil: Strumia, Miriam Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); ArgentinaFil: Yudi, Lidia Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones En Físicoquímica de Córdoba; ArgentinaFil: Martinelli, Marisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); ArgentinaFil: Juárez, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones En Físicoquímica de Córdoba; ArgentinaElsevier2014-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/13833Aldana, Ana Agustina; Strumia, Miriam Cristina; Yudi, Lidia Mabel; Martinelli, Marisa; Juárez, Ana Valeria; Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface; Elsevier; Electrochimica Acta; 117; 12-2014; 534-5400013-4686enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0013468613023815info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2013.11.146info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:00:38Zoai:ri.conicet.gov.ar:11336/13833instacron: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:34982025-09-03 10:00:38.38CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface
title Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface
spellingShingle Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface
Aldana, Ana Agustina
Liquid/Liquid Interfaces Liquid/Liquid Interfaces
Chitosanchitosan
Quaternized Chitosan Queternized Chitosan
Cationic Polyelectrolytes Cationic Polyelectrolites
title_short Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface
title_full Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface
title_fullStr Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface
title_full_unstemmed Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface
title_sort Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface
dc.creator.none.fl_str_mv Aldana, Ana Agustina
Strumia, Miriam Cristina
Yudi, Lidia Mabel
Martinelli, Marisa
Juárez, Ana Valeria
author Aldana, Ana Agustina
author_facet Aldana, Ana Agustina
Strumia, Miriam Cristina
Yudi, Lidia Mabel
Martinelli, Marisa
Juárez, Ana Valeria
author_role author
author2 Strumia, Miriam Cristina
Yudi, Lidia Mabel
Martinelli, Marisa
Juárez, Ana Valeria
author2_role author
author
author
author
dc.subject.none.fl_str_mv Liquid/Liquid Interfaces Liquid/Liquid Interfaces
Chitosanchitosan
Quaternized Chitosan Queternized Chitosan
Cationic Polyelectrolytes Cationic Polyelectrolites
topic Liquid/Liquid Interfaces Liquid/Liquid Interfaces
Chitosanchitosan
Quaternized Chitosan Queternized Chitosan
Cationic Polyelectrolytes Cationic Polyelectrolites
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The electrochemical behavior of the cationic polymer chitosan-gtmac (Ch-GTMAC), at the polarized water / 1,2-dichloroethane interface was studied. This polymer was obtained by nucleophilic reaction of chitosan (Ch) with glycidyltrimethylammonium chloride groups (GTMAC). The voltammetric response was found to be dependent on the concentration of the polymer, on pH of the aqueous phase, and on the nature of the organic electrolyte. The results suggest a weak adsorption of the polymer coupled to the transfer towards the organic phase. Desorption process is quasi-reversible, and there is not interaction between adsorbents. From the analysis of desorption charge, it was possible to determine the substitution degree of the polymer
Fil: Aldana, Ana Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Strumia, Miriam Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Yudi, Lidia Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones En Físicoquímica de Córdoba; Argentina
Fil: Martinelli, Marisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Juárez, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Investigaciones En Físicoquímica de Córdoba; Argentina
description The electrochemical behavior of the cationic polymer chitosan-gtmac (Ch-GTMAC), at the polarized water / 1,2-dichloroethane interface was studied. This polymer was obtained by nucleophilic reaction of chitosan (Ch) with glycidyltrimethylammonium chloride groups (GTMAC). The voltammetric response was found to be dependent on the concentration of the polymer, on pH of the aqueous phase, and on the nature of the organic electrolyte. The results suggest a weak adsorption of the polymer coupled to the transfer towards the organic phase. Desorption process is quasi-reversible, and there is not interaction between adsorbents. From the analysis of desorption charge, it was possible to determine the substitution degree of the polymer
publishDate 2014
dc.date.none.fl_str_mv 2014-12
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/11336/13833
Aldana, Ana Agustina; Strumia, Miriam Cristina; Yudi, Lidia Mabel; Martinelli, Marisa; Juárez, Ana Valeria; Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface; Elsevier; Electrochimica Acta; 117; 12-2014; 534-540
0013-4686
url http://hdl.handle.net/11336/13833
identifier_str_mv Aldana, Ana Agustina; Strumia, Miriam Cristina; Yudi, Lidia Mabel; Martinelli, Marisa; Juárez, Ana Valeria; Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface; Elsevier; Electrochimica Acta; 117; 12-2014; 534-540
0013-4686
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0013468613023815
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2013.11.146
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
_version_ 1842269650286542848
score 13.13397

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