Tailored Jeffamine molecular tools for ordering mesoporous Silica

Herein, we report the formation of organized mesoporous silica materials prepared from a novel nonionic gemini surfactant, myristoyl-end capped Jeffamine, synthesized from a polyoxyalkyleneamine (ED900). The behavior of the modified Jeffamine in water was first investigated. A direct micellar phase...

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Detalles Bibliográficos
Autores: May Masnou, Anna, Pasc, Andreea, Stébé, Marie José, Gutiérrez González, José María, 1953-, Porras Rodríguez, Montserrat, Blin, Jean Luc
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2012
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/62780
Acceso en línea:https://hdl.handle.net/2445/62780
Access Level:acceso abierto
Palabra clave:Química de superfícies
Col·loides
Silici
Cristal·lografia
Surface chemistry
Colloids
Silicon
Crystallography
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spelling Tailored Jeffamine molecular tools for ordering mesoporous SilicaMay Masnou, AnnaPasc, AndreeaStébé, Marie JoséGutiérrez González, José María, 1953-Porras Rodríguez, MontserratBlin, Jean LucQuímica de superfíciesCol·loidesSiliciCristal·lografiaSurface chemistryColloidsSiliconCrystallographyHerein, we report the formation of organized mesoporous silica materials prepared from a novel nonionic gemini surfactant, myristoyl-end capped Jeffamine, synthesized from a polyoxyalkyleneamine (ED900). The behavior of the modified Jeffamine in water was first investigated. A direct micellar phase (L1) and a hexagonal (H1) liquid crystal were found. The structure of the micelles was investigated from the SAXS and the analysis by Generalized Indirect Fourier Transformation (GIFT), which show that the particles are globular of coreshell type. The myristoyl chains, located at the ends of the amphiphile molecule are assembled to form the core of the micelles and, as a consequence, the molecules are folded over on themselves. Mesoporous materials were then synthesized from the self-assembly mechanism. The recovered materials were characterized by SAXS measurements, nitrogen adsorptiondesorption analysis, transmission and scanning electron microscopy. The results clearly evidence that by modifying the synthesis parameters, such as the surfactant/silica precursor molar ratio and the hydrothermal conditions, one can control the size and the nanostructuring of the resulting material. It was observed that, the lower the temperature of the hydrothermal treatment, the better the mesopore ordering.American Chemical Society2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/62780Articles publicats en revistes (Enginyeria Química i Química Analítica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: http://dx.doi.org/10.1021/la301413uLangmuir, 2012, vol. 28, num. 25, p. 9816-9824http://dx.doi.org/10.1021/la301413u(c) American Chemical Society , 2012info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/627802026-05-27T06:46:51Z
dc.title.none.fl_str_mv Tailored Jeffamine molecular tools for ordering mesoporous Silica
title Tailored Jeffamine molecular tools for ordering mesoporous Silica
spellingShingle Tailored Jeffamine molecular tools for ordering mesoporous Silica
May Masnou, Anna
Química de superfícies
Col·loides
Silici
Cristal·lografia
Surface chemistry
Colloids
Silicon
Crystallography
title_short Tailored Jeffamine molecular tools for ordering mesoporous Silica
title_full Tailored Jeffamine molecular tools for ordering mesoporous Silica
title_fullStr Tailored Jeffamine molecular tools for ordering mesoporous Silica
title_full_unstemmed Tailored Jeffamine molecular tools for ordering mesoporous Silica
title_sort Tailored Jeffamine molecular tools for ordering mesoporous Silica
dc.creator.none.fl_str_mv May Masnou, Anna
Pasc, Andreea
Stébé, Marie José
Gutiérrez González, José María, 1953-
Porras Rodríguez, Montserrat
Blin, Jean Luc
author May Masnou, Anna
author_facet May Masnou, Anna
Pasc, Andreea
Stébé, Marie José
Gutiérrez González, José María, 1953-
Porras Rodríguez, Montserrat
Blin, Jean Luc
author_role author
author2 Pasc, Andreea
Stébé, Marie José
Gutiérrez González, José María, 1953-
Porras Rodríguez, Montserrat
Blin, Jean Luc
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Química de superfícies
Col·loides
Silici
Cristal·lografia
Surface chemistry
Colloids
Silicon
Crystallography
topic Química de superfícies
Col·loides
Silici
Cristal·lografia
Surface chemistry
Colloids
Silicon
Crystallography
description Herein, we report the formation of organized mesoporous silica materials prepared from a novel nonionic gemini surfactant, myristoyl-end capped Jeffamine, synthesized from a polyoxyalkyleneamine (ED900). The behavior of the modified Jeffamine in water was first investigated. A direct micellar phase (L1) and a hexagonal (H1) liquid crystal were found. The structure of the micelles was investigated from the SAXS and the analysis by Generalized Indirect Fourier Transformation (GIFT), which show that the particles are globular of coreshell type. The myristoyl chains, located at the ends of the amphiphile molecule are assembled to form the core of the micelles and, as a consequence, the molecules are folded over on themselves. Mesoporous materials were then synthesized from the self-assembly mechanism. The recovered materials were characterized by SAXS measurements, nitrogen adsorptiondesorption analysis, transmission and scanning electron microscopy. The results clearly evidence that by modifying the synthesis parameters, such as the surfactant/silica precursor molar ratio and the hydrothermal conditions, one can control the size and the nanostructuring of the resulting material. It was observed that, the lower the temperature of the hydrothermal treatment, the better the mesopore ordering.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/62780
url https://hdl.handle.net/2445/62780
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: http://dx.doi.org/10.1021/la301413u
Langmuir, 2012, vol. 28, num. 25, p. 9816-9824
http://dx.doi.org/10.1021/la301413u
dc.rights.none.fl_str_mv (c) American Chemical Society , 2012
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Chemical Society , 2012
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Enginyeria Química i Química Analítica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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