Self-assembly of bridged silsesquioxanes : modulating structural evolution via cooperative covalent and noncovalent interactions

The self-assembly of a bis-urea phenylene-bridged silsesquioxane precursor during sol-gel synthesis has been investigated by in situ infrared spectroscopy, optical microscopy, and light scattering. In particular, the evolution of the system as a function of processing time was correlated with covale...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 29(2013), 18 vom: 07. Mai, Seite 5581-8
1. Verfasser: Creff, Gaelle (VerfasserIn)
Weitere Verfasser: Pichon, Benoît P, Blanc, Christophe, Maurin, David, Sauvajol, Jean-Louis, Carcel, Carole, Moreau, Joël J E, Roy, Pascale, Bartlett, John R, Man, Michel Wong Chi, Bantignies, Jean-Louis
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Organosilicon Compounds
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520 |a The self-assembly of a bis-urea phenylene-bridged silsesquioxane precursor during sol-gel synthesis has been investigated by in situ infrared spectroscopy, optical microscopy, and light scattering. In particular, the evolution of the system as a function of processing time was correlated with covalent interactions associated with increasing polycondensation and noncovalent interactions such as hydrogen bonding. A comprehensive mechanism based on the hydrolysis of the phenylene-bridged organosilane precursor prior to the crystallization of the corresponding bridged silsesquioxane via H-bonding and subsequent irreversible polycondensation is proposed 
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700 1 |a Pichon, Benoît P  |e verfasserin  |4 aut 
700 1 |a Blanc, Christophe  |e verfasserin  |4 aut 
700 1 |a Maurin, David  |e verfasserin  |4 aut 
700 1 |a Sauvajol, Jean-Louis  |e verfasserin  |4 aut 
700 1 |a Carcel, Carole  |e verfasserin  |4 aut 
700 1 |a Moreau, Joël J E  |e verfasserin  |4 aut 
700 1 |a Roy, Pascale  |e verfasserin  |4 aut 
700 1 |a Bartlett, John R  |e verfasserin  |4 aut 
700 1 |a Man, Michel Wong Chi  |e verfasserin  |4 aut 
700 1 |a Bantignies, Jean-Louis  |e verfasserin  |4 aut 
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