Mostrar el registro sencillo del ítem
dc.contributor.author
Bordoni, Andrea Veronica
dc.contributor.author
Lombardo, Maria Veronica
dc.contributor.author
Regazzoni, Alberto Ernesto
dc.contributor.author
Soler Illia, Galo Juan de Avila Arturo
dc.contributor.author
Wolosiuk, Alejandro
dc.date.available
2018-03-08T22:41:23Z
dc.date.issued
2015-07
dc.identifier.citation
Bordoni, Andrea Veronica; Lombardo, Maria Veronica; Regazzoni, Alberto Ernesto; Soler Illia, Galo Juan de Avila Arturo; Wolosiuk, Alejandro; Simple thiol-ene click chemistry modification of SBA-15 silica pores with carboxylic acids; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 450; 7-2015; 316-324
dc.identifier.issn
0021-9797
dc.identifier.uri
http://hdl.handle.net/11336/38385
dc.description.abstract
A straightforward approach for anchoring tailored carboxylic groups in mesoporous SiO2 colloidal materials is presented. The thiol-ene photochemical reaction between vinyltrimethoxysilane precursors and various thiocarboxylic acids which has, click chemistry features (i.e. high conversion yields, insensitivity to oxygen, mild reaction conditions), results in carboxylated silane precursors that can be readily used as surface modifiers. The carboxylic groups of acetic, undecanoic and succinic acid were immobilized on the silica mesopore walls of SBA-15 powders employing the synthesized silane precursors. Post-grafting has been confirmed through infrared spectrometry (FTIR), energy dispersive X-ray spectroscopy (EDS), elemental analysis (EA) and zeta potential measurements. Detailed field-emission gun scanning electron microscopy (FESEM) images and small angle X-ray scattering (SAXS) data revealed parallel mesopores and ordered mesostructures. It is shown that the immobilized COOH groups are chemically accessible for acid-base reactions as well as copper adsorption. Immobilization of easily synthesized tailored carboxylic modified alkoxide precursors within mesoporous systems provides a unique chemical nanoenvironment within these ordered frameworks.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Academic Press Inc Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Carboxylic Groups
dc.subject
Click Chemistry
dc.subject
Functionalized Sio≪Inf≫2≪/Inf≫
dc.subject
Mesostructured Materials
dc.subject
Sba-15
dc.subject
Thiol-Ene Addition
dc.subject.classification
Otras Ciencias Químicas
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Simple thiol-ene click chemistry modification of SBA-15 silica pores with carboxylic acids
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-03-08T19:03:14Z
dc.journal.volume
450
dc.journal.pagination
316-324
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Bordoni, Andrea Veronica. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Lombardo, Maria Veronica. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Regazzoni, Alberto Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
dc.description.fil
Fil: Soler Illia, Galo Juan de Avila Arturo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina
dc.description.fil
Fil: Wolosiuk, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
dc.journal.title
Journal of Colloid and Interface Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jcis.2015.03.030
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0021979715002921
Archivos asociados