Surface esterification of cellulose nanofibers by simple organocatalytic methodology

Autores
Avila Ramirez, Jhon Alejandro; Suriano, Camila Juan; Cerrutti, Patricia; Foresti, María Laura
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Bacterial cellulose nanofibers were esterified with two short carboxylic acids by means of a simpleand novel organic acid-catalyzed route. The methodology proposed relayed on the use of a non-toxicbiobased -hydroxycarboxylic acid as catalyst, and proceeded under moderate reaction conditions insolventless medium. By varying the esterification interval, acetylated and propionized bacterial cellu-lose nanofibers with degree of substitution (DS) in the 0.02?0.45 range could be obtained. Esterifiedbacterial cellulose samples were characterized by means of Solid-State CP/MAS13C Nuclear MagneticResonance spectroscopy (CP/MAS13C NMR), Fourier Transform Infrared spectroscopy (FTIR), X-rayDiffraction (XRD), Thermogravimetric Analysis (TGA) and chosen hydrophobicity test assays. TGA resultsshowed that the esterified nanofibers had increased thermal stability, whereas XRD data evidenced thatthe organocatalytic esterification protocol did not alter their crystallinity. The analysis of the ensuingmodified nanofibers by NMR, FTIR, XRD and TGA demonstrated that esterification occurred essentiallyat the surface of bacterial cellulose microfibrils, something highly desirable for changing their surfacehydrophilicity while not affecting their ultrastructure.
Fil: Avila Ramirez, Jhon Alejandro. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; Argentina
Fil: Suriano, Camila Juan. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; Argentina
Fil: Cerrutti, Patricia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; Argentina
Fil: Foresti, María Laura. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
Materia
Bacterial Cellulose
Characterization
Organocatalysis;
Surface Esterification
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:11336/6554
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/6554
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Surface esterification of cellulose nanofibers by simple organocatalytic methodologyAvila Ramirez, Jhon AlejandroSuriano, Camila JuanCerrutti, PatriciaForesti, María LauraBacterial CelluloseCharacterizationOrganocatalysis;Surface Esterificationhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Bacterial cellulose nanofibers were esterified with two short carboxylic acids by means of a simpleand novel organic acid-catalyzed route. The methodology proposed relayed on the use of a non-toxicbiobased -hydroxycarboxylic acid as catalyst, and proceeded under moderate reaction conditions insolventless medium. By varying the esterification interval, acetylated and propionized bacterial cellu-lose nanofibers with degree of substitution (DS) in the 0.02?0.45 range could be obtained. Esterifiedbacterial cellulose samples were characterized by means of Solid-State CP/MAS13C Nuclear MagneticResonance spectroscopy (CP/MAS13C NMR), Fourier Transform Infrared spectroscopy (FTIR), X-rayDiffraction (XRD), Thermogravimetric Analysis (TGA) and chosen hydrophobicity test assays. TGA resultsshowed that the esterified nanofibers had increased thermal stability, whereas XRD data evidenced thatthe organocatalytic esterification protocol did not alter their crystallinity. The analysis of the ensuingmodified nanofibers by NMR, FTIR, XRD and TGA demonstrated that esterification occurred essentiallyat the surface of bacterial cellulose microfibrils, something highly desirable for changing their surfacehydrophilicity while not affecting their ultrastructure.Fil: Avila Ramirez, Jhon Alejandro. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; ArgentinaFil: Suriano, Camila Juan. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; ArgentinaFil: Cerrutti, Patricia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; ArgentinaFil: Foresti, María Laura. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; ArgentinaElsevier2014-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6554Avila Ramirez, Jhon Alejandro; Suriano, Camila Juan; Cerrutti, Patricia; Foresti, María Laura; Surface esterification of cellulose nanofibers by simple organocatalytic methodology; Elsevier; Carbohydrate Polymers; 114; 8-2014; 416-4230144-8617enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0144861714007899info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1016/j.carbpol.2014.08.020info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:17:43Zoai:ri.conicet.gov.ar:11336/6554instacron: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 10:17:43.733CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Surface esterification of cellulose nanofibers by simple organocatalytic methodology
title Surface esterification of cellulose nanofibers by simple organocatalytic methodology
spellingShingle Surface esterification of cellulose nanofibers by simple organocatalytic methodology
Avila Ramirez, Jhon Alejandro
Bacterial Cellulose
Characterization
Organocatalysis;
Surface Esterification
title_short Surface esterification of cellulose nanofibers by simple organocatalytic methodology
title_full Surface esterification of cellulose nanofibers by simple organocatalytic methodology
title_fullStr Surface esterification of cellulose nanofibers by simple organocatalytic methodology
title_full_unstemmed Surface esterification of cellulose nanofibers by simple organocatalytic methodology
title_sort Surface esterification of cellulose nanofibers by simple organocatalytic methodology
dc.creator.none.fl_str_mv Avila Ramirez, Jhon Alejandro
Suriano, Camila Juan
Cerrutti, Patricia
Foresti, María Laura
author Avila Ramirez, Jhon Alejandro
author_facet Avila Ramirez, Jhon Alejandro
Suriano, Camila Juan
Cerrutti, Patricia
Foresti, María Laura
author_role author
author2 Suriano, Camila Juan
Cerrutti, Patricia
Foresti, María Laura
author2_role author
author
author
dc.subject.none.fl_str_mv Bacterial Cellulose
Characterization
Organocatalysis;
Surface Esterification
topic Bacterial Cellulose
Characterization
Organocatalysis;
Surface Esterification
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Bacterial cellulose nanofibers were esterified with two short carboxylic acids by means of a simpleand novel organic acid-catalyzed route. The methodology proposed relayed on the use of a non-toxicbiobased -hydroxycarboxylic acid as catalyst, and proceeded under moderate reaction conditions insolventless medium. By varying the esterification interval, acetylated and propionized bacterial cellu-lose nanofibers with degree of substitution (DS) in the 0.02?0.45 range could be obtained. Esterifiedbacterial cellulose samples were characterized by means of Solid-State CP/MAS13C Nuclear MagneticResonance spectroscopy (CP/MAS13C NMR), Fourier Transform Infrared spectroscopy (FTIR), X-rayDiffraction (XRD), Thermogravimetric Analysis (TGA) and chosen hydrophobicity test assays. TGA resultsshowed that the esterified nanofibers had increased thermal stability, whereas XRD data evidenced thatthe organocatalytic esterification protocol did not alter their crystallinity. The analysis of the ensuingmodified nanofibers by NMR, FTIR, XRD and TGA demonstrated that esterification occurred essentiallyat the surface of bacterial cellulose microfibrils, something highly desirable for changing their surfacehydrophilicity while not affecting their ultrastructure.
Fil: Avila Ramirez, Jhon Alejandro. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; Argentina
Fil: Suriano, Camila Juan. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; Argentina
Fil: Cerrutti, Patricia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; Argentina
Fil: Foresti, María Laura. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Tecnologia En Polimeros y Nanotecnologia; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
description Bacterial cellulose nanofibers were esterified with two short carboxylic acids by means of a simpleand novel organic acid-catalyzed route. The methodology proposed relayed on the use of a non-toxicbiobased -hydroxycarboxylic acid as catalyst, and proceeded under moderate reaction conditions insolventless medium. By varying the esterification interval, acetylated and propionized bacterial cellu-lose nanofibers with degree of substitution (DS) in the 0.02?0.45 range could be obtained. Esterifiedbacterial cellulose samples were characterized by means of Solid-State CP/MAS13C Nuclear MagneticResonance spectroscopy (CP/MAS13C NMR), Fourier Transform Infrared spectroscopy (FTIR), X-rayDiffraction (XRD), Thermogravimetric Analysis (TGA) and chosen hydrophobicity test assays. TGA resultsshowed that the esterified nanofibers had increased thermal stability, whereas XRD data evidenced thatthe organocatalytic esterification protocol did not alter their crystallinity. The analysis of the ensuingmodified nanofibers by NMR, FTIR, XRD and TGA demonstrated that esterification occurred essentiallyat the surface of bacterial cellulose microfibrils, something highly desirable for changing their surfacehydrophilicity while not affecting their ultrastructure.
publishDate 2014
dc.date.none.fl_str_mv 2014-08
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/11336/6554
Avila Ramirez, Jhon Alejandro; Suriano, Camila Juan; Cerrutti, Patricia; Foresti, María Laura; Surface esterification of cellulose nanofibers by simple organocatalytic methodology; Elsevier; Carbohydrate Polymers; 114; 8-2014; 416-423
0144-8617
url http://hdl.handle.net/11336/6554
identifier_str_mv Avila Ramirez, Jhon Alejandro; Suriano, Camila Juan; Cerrutti, Patricia; Foresti, María Laura; Surface esterification of cellulose nanofibers by simple organocatalytic methodology; Elsevier; Carbohydrate Polymers; 114; 8-2014; 416-423
0144-8617
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/S0144861714007899
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.carbpol.2014.08.020
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/vnd.openxmlformats-officedocument.wordprocessingml.document
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
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score 13.070432

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