Organized thiol functional groups in mesoporous core shell colloids
The co-condensation in situ of tetraethoxysilane (TEOS) and mercaptopropyltrimethoxysilane (MPTMS) using cetyltrimethylammonium bromide (CTAB) as a template results in the synthesis of multilayered mesoporous structured SiO 2 colloids with onion-like chemical environments. Thiol groups were anchored...
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00224596_v187_n_p97_Marchena http://hdl.handle.net/20.500.12110/paper_00224596_v187_n_p97_Marchena |
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paper:paper_00224596_v187_n_p97_Marchena2023-06-08T14:50:54Z Organized thiol functional groups in mesoporous core shell colloids Bordoni, Andrea Verónica Joselevich, María Williams, Federico Jose Colloids Coreshell Mesoporous silica Templated materials Thiols Cetyltrimethylammonium bromide Chemical environment Co-condensation Controlled properties Core shell particles Core-shell Double layers In-situ Layered Structures Mercaptopropyltrimethoxysilane Mesoporous Mesoporous Silica Multi-layered Porosimetry Porous layers SH groups Templated materials Tetraethoxysilanes Thiol functional groups Thiol groups Thiols Colloid chemistry Colloids Functional groups Silicon compounds X ray photoelectron spectroscopy Chemical modification The co-condensation in situ of tetraethoxysilane (TEOS) and mercaptopropyltrimethoxysilane (MPTMS) using cetyltrimethylammonium bromide (CTAB) as a template results in the synthesis of multilayered mesoporous structured SiO 2 colloids with onion-like chemical environments. Thiol groups were anchored to an inner selected SiO 2 porous layer in a bilayered core shell particle producing different chemical regions inside the colloidal layered structure. X-Ray Photoelectron Spectroscopy (XPS) shows a preferential anchoring of the SH groups in the double layer shell system, while porosimetry and simple chemical modifications confirm that pores are accessible. We can envision the synthesis of interesting colloidal objects with defined chemical environments with highly controlled properties. © 2012 Elsevier Inc. © 2012 Elsevier Inc. All rights reserved. Fil:Bordoni, A.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Joselevich, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Williams, F.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00224596_v187_n_p97_Marchena http://hdl.handle.net/20.500.12110/paper_00224596_v187_n_p97_Marchena |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Colloids Coreshell Mesoporous silica Templated materials Thiols Cetyltrimethylammonium bromide Chemical environment Co-condensation Controlled properties Core shell particles Core-shell Double layers In-situ Layered Structures Mercaptopropyltrimethoxysilane Mesoporous Mesoporous Silica Multi-layered Porosimetry Porous layers SH groups Templated materials Tetraethoxysilanes Thiol functional groups Thiol groups Thiols Colloid chemistry Colloids Functional groups Silicon compounds X ray photoelectron spectroscopy Chemical modification |
spellingShingle |
Colloids Coreshell Mesoporous silica Templated materials Thiols Cetyltrimethylammonium bromide Chemical environment Co-condensation Controlled properties Core shell particles Core-shell Double layers In-situ Layered Structures Mercaptopropyltrimethoxysilane Mesoporous Mesoporous Silica Multi-layered Porosimetry Porous layers SH groups Templated materials Tetraethoxysilanes Thiol functional groups Thiol groups Thiols Colloid chemistry Colloids Functional groups Silicon compounds X ray photoelectron spectroscopy Chemical modification Bordoni, Andrea Verónica Joselevich, María Williams, Federico Jose Organized thiol functional groups in mesoporous core shell colloids |
topic_facet |
Colloids Coreshell Mesoporous silica Templated materials Thiols Cetyltrimethylammonium bromide Chemical environment Co-condensation Controlled properties Core shell particles Core-shell Double layers In-situ Layered Structures Mercaptopropyltrimethoxysilane Mesoporous Mesoporous Silica Multi-layered Porosimetry Porous layers SH groups Templated materials Tetraethoxysilanes Thiol functional groups Thiol groups Thiols Colloid chemistry Colloids Functional groups Silicon compounds X ray photoelectron spectroscopy Chemical modification |
description |
The co-condensation in situ of tetraethoxysilane (TEOS) and mercaptopropyltrimethoxysilane (MPTMS) using cetyltrimethylammonium bromide (CTAB) as a template results in the synthesis of multilayered mesoporous structured SiO 2 colloids with onion-like chemical environments. Thiol groups were anchored to an inner selected SiO 2 porous layer in a bilayered core shell particle producing different chemical regions inside the colloidal layered structure. X-Ray Photoelectron Spectroscopy (XPS) shows a preferential anchoring of the SH groups in the double layer shell system, while porosimetry and simple chemical modifications confirm that pores are accessible. We can envision the synthesis of interesting colloidal objects with defined chemical environments with highly controlled properties. © 2012 Elsevier Inc. © 2012 Elsevier Inc. All rights reserved. |
author |
Bordoni, Andrea Verónica Joselevich, María Williams, Federico Jose |
author_facet |
Bordoni, Andrea Verónica Joselevich, María Williams, Federico Jose |
author_sort |
Bordoni, Andrea Verónica |
title |
Organized thiol functional groups in mesoporous core shell colloids |
title_short |
Organized thiol functional groups in mesoporous core shell colloids |
title_full |
Organized thiol functional groups in mesoporous core shell colloids |
title_fullStr |
Organized thiol functional groups in mesoporous core shell colloids |
title_full_unstemmed |
Organized thiol functional groups in mesoporous core shell colloids |
title_sort |
organized thiol functional groups in mesoporous core shell colloids |
publishDate |
2012 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00224596_v187_n_p97_Marchena http://hdl.handle.net/20.500.12110/paper_00224596_v187_n_p97_Marchena |
work_keys_str_mv |
AT bordoniandreaveronica organizedthiolfunctionalgroupsinmesoporouscoreshellcolloids AT joselevichmaria organizedthiolfunctionalgroupsinmesoporouscoreshellcolloids AT williamsfedericojose organizedthiolfunctionalgroupsinmesoporouscoreshellcolloids |
_version_ |
1768541551802187776 |