Dynamics of PEO־PPO־PEO block copolymer aggregation and silicate mesophase formation monitored by time־resolved ATR־FTIR spectroscopy
The use of the attenuated total reflectance (ATR) technique to perform time-resolved FTIR spectroscopy analysis of the synthesis of SBA-15 silicate is reported. This spectroscopy is a powerful technique to investigate the assembly of surfactants and silicate species as well as surfactant micellizati...
| Autores: | , , |
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| Formato: | artículo |
| Fecha de publicación: | 2008 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/27480 |
| Acesso em linha: | http://hdl.handle.net/10261/27480 |
| Access Level: | acceso abierto |
| Palavra-chave: | SBA-15 synthesis In situ FTIR block copolymer surfactant CMT |
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oai:digital.csic.es:10261/27480 |
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ES |
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España |
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Dynamics of PEO־PPO־PEO block copolymer aggregation and silicate mesophase formation monitored by time־resolved ATR־FTIR spectroscopy Sánchez Muñoz, María Teresa Pérez-Pariente, Joaquín Márquez Álvarez, Carlos SBA-15 synthesis In situ FTIR block copolymer surfactant CMT The use of the attenuated total reflectance (ATR) technique to perform time-resolved FTIR spectroscopy analysis of the synthesis of SBA-15 silicate is reported. This spectroscopy is a powerful technique to investigate the assembly of surfactants and silicate species as well as surfactant micellization, as infrared bands are sensitive to local polarity and conformation of the surfactant chains. Critical micellization temperature (CMT), a key parameter that determines mesophase synthesis conditions and long-range ordering, is determined by in situ time-resolved ATR-FTIR under the conditions used to synthesize the mesophase. This technique allows also to determine the dynamics of the hydrolysis and condensation reactions of the silicate precursor. MEC (CTQ2006-06282) Peer reviewed Elsevier http://hdl.handle.net/10261/27480 |
| title |
Dynamics of PEO־PPO־PEO block copolymer aggregation and silicate mesophase formation monitored by time־resolved ATR־FTIR spectroscopy |
| spellingShingle |
Dynamics of PEO־PPO־PEO block copolymer aggregation and silicate mesophase formation monitored by time־resolved ATR־FTIR spectroscopy Sánchez Muñoz, María Teresa SBA-15 synthesis In situ FTIR block copolymer surfactant CMT |
| title_short |
Dynamics of PEO־PPO־PEO block copolymer aggregation and silicate mesophase formation monitored by time־resolved ATR־FTIR spectroscopy |
| title_full |
Dynamics of PEO־PPO־PEO block copolymer aggregation and silicate mesophase formation monitored by time־resolved ATR־FTIR spectroscopy |
| title_fullStr |
Dynamics of PEO־PPO־PEO block copolymer aggregation and silicate mesophase formation monitored by time־resolved ATR־FTIR spectroscopy |
| title_full_unstemmed |
Dynamics of PEO־PPO־PEO block copolymer aggregation and silicate mesophase formation monitored by time־resolved ATR־FTIR spectroscopy |
| title_sort |
Dynamics of PEO־PPO־PEO block copolymer aggregation and silicate mesophase formation monitored by time־resolved ATR־FTIR spectroscopy |
| author |
Sánchez Muñoz, María Teresa |
| author_facet |
Sánchez Muñoz, María Teresa Pérez-Pariente, Joaquín Márquez Álvarez, Carlos |
| author_role |
author |
| author2 |
Pérez-Pariente, Joaquín Márquez Álvarez, Carlos |
| author2_role |
author author |
| topic |
SBA-15 synthesis In situ FTIR block copolymer surfactant CMT |
| topic_facet |
SBA-15 synthesis In situ FTIR block copolymer surfactant CMT |
| description |
The use of the attenuated total reflectance (ATR) technique to perform time-resolved FTIR spectroscopy analysis of the synthesis of SBA-15 silicate is reported. This spectroscopy is a powerful technique to investigate the assembly of surfactants and silicate species as well as surfactant micellization, as infrared bands are sensitive to local polarity and conformation of the surfactant chains. Critical micellization temperature (CMT), a key parameter that determines mesophase synthesis conditions and long-range ordering, is determined by in situ time-resolved ATR-FTIR under the conditions used to synthesize the mesophase. This technique allows also to determine the dynamics of the hydrolysis and condensation reactions of the silicate precursor. |
| publishDate |
2008 |
| format |
article |
| url |
http://hdl.handle.net/10261/27480 |
| eu_rights_str_mv |
openAccess |
| publisher |
Elsevier |
| institution |
Consejo Superior de Investigaciones Científicas (CSIC) |
| collection |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
| reponame_str |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
| instname_str |
Consejo Superior de Investigaciones Científicas (CSIC) |
| _version_ |
1878433969884626944 |
| publishDateSort |
2008 |
| author_browse |
Márquez Álvarez, Carlos Pérez-Pariente, Joaquín Sánchez Muñoz, María Teresa |
| publisherStr |
Elsevier |
| score |
6,9303427 |