Photophysical methods for the study of sol-gel transition and structure of titania gels

The sol to gel evolution of titania based systems in AOT (sodium 2-etil-hexil sulfosuccinate) reverse micelles is monitored by the fluorescence anisotropy of molecular probes located in the different phases of the system. In contrast with processes in homogeneous systems, hydrolysis and condensation...

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Detalles Bibliográficos
Autores principales:	Marchi, María Claudia, Negri, Ricardo Martin, Aldabe Bilmes, Sara Alfonsina Dora
Publicado:	2003
Materias:	AOT Fluorescence anisotropy Reverse micelles Titanium dioxide Anisotropy Gels Hydrolysis Micelles Surface active agents Homogeneous systems Sol-gels
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09280707_v26_n1-3_p131_Marchi http://hdl.handle.net/20.500.12110/paper_09280707_v26_n1-3_p131_Marchi
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09280707_v26_n1-3_p131_Marchi
record_format	dspace
spelling	paper:paper_09280707_v26_n1-3_p131_Marchi2023-06-08T15:52:09Z Photophysical methods for the study of sol-gel transition and structure of titania gels Marchi, María Claudia Negri, Ricardo Martin Aldabe Bilmes, Sara Alfonsina Dora AOT Fluorescence anisotropy Reverse micelles Titanium dioxide Anisotropy Gels Hydrolysis Micelles Surface active agents Titanium dioxide Homogeneous systems Sol-gels The sol to gel evolution of titania based systems in AOT (sodium 2-etil-hexil sulfosuccinate) reverse micelles is monitored by the fluorescence anisotropy of molecular probes located in the different phases of the system. In contrast with processes in homogeneous systems, hydrolysis and condensation reactions occur in different time windows. The obtained results allow to describe the location of the hydrolysis, the reorganisation of the surfactant and to predict the formation of precipitates. Fil:Marchi, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Negri, R.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bilmes, S.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2003 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09280707_v26_n1-3_p131_Marchi http://hdl.handle.net/20.500.12110/paper_09280707_v26_n1-3_p131_Marchi
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	AOT Fluorescence anisotropy Reverse micelles Titanium dioxide Anisotropy Gels Hydrolysis Micelles Surface active agents Titanium dioxide Homogeneous systems Sol-gels
spellingShingle	AOT Fluorescence anisotropy Reverse micelles Titanium dioxide Anisotropy Gels Hydrolysis Micelles Surface active agents Titanium dioxide Homogeneous systems Sol-gels Marchi, María Claudia Negri, Ricardo Martin Aldabe Bilmes, Sara Alfonsina Dora Photophysical methods for the study of sol-gel transition and structure of titania gels
topic_facet	AOT Fluorescence anisotropy Reverse micelles Titanium dioxide Anisotropy Gels Hydrolysis Micelles Surface active agents Titanium dioxide Homogeneous systems Sol-gels
description	The sol to gel evolution of titania based systems in AOT (sodium 2-etil-hexil sulfosuccinate) reverse micelles is monitored by the fluorescence anisotropy of molecular probes located in the different phases of the system. In contrast with processes in homogeneous systems, hydrolysis and condensation reactions occur in different time windows. The obtained results allow to describe the location of the hydrolysis, the reorganisation of the surfactant and to predict the formation of precipitates.
author	Marchi, María Claudia Negri, Ricardo Martin Aldabe Bilmes, Sara Alfonsina Dora
author_facet	Marchi, María Claudia Negri, Ricardo Martin Aldabe Bilmes, Sara Alfonsina Dora
author_sort	Marchi, María Claudia
title	Photophysical methods for the study of sol-gel transition and structure of titania gels
title_short	Photophysical methods for the study of sol-gel transition and structure of titania gels
title_full	Photophysical methods for the study of sol-gel transition and structure of titania gels
title_fullStr	Photophysical methods for the study of sol-gel transition and structure of titania gels
title_full_unstemmed	Photophysical methods for the study of sol-gel transition and structure of titania gels
title_sort	photophysical methods for the study of sol-gel transition and structure of titania gels
publishDate	2003
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09280707_v26_n1-3_p131_Marchi http://hdl.handle.net/20.500.12110/paper_09280707_v26_n1-3_p131_Marchi
work_keys_str_mv	AT marchimariaclaudia photophysicalmethodsforthestudyofsolgeltransitionandstructureoftitaniagels AT negriricardomartin photophysicalmethodsforthestudyofsolgeltransitionandstructureoftitaniagels AT aldabebilmessaraalfonsinadora photophysicalmethodsforthestudyofsolgeltransitionandstructureoftitaniagels
_version_	1768545699752837120

Photophysical methods for the study of sol-gel transition and structure of titania gels

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