Characterization of the sol-gel process using raman spectroscopy organically modified silica gels prepared via the formic acid-alkoxide route

1997 ◽  
Vol 9 (3) ◽  
pp. 251-263 ◽  
Author(s):  
Jan-Christoph Panitz ◽  
Alexander Wokaun
Keyword(s):  
Raman Spectroscopy ◽  
Sol Gel ◽  
Silica Gels ◽  
Modified Silica ◽  
Sol Gel Process ◽  
Organically Modified ◽  
Organically Modified Silica ◽  
Alkoxide Route ◽  
Modified Silica Gels

Structural Characterization of Gels Prepared from Co-Hydrolysis of Tetraethoxysilane and Dimethyldiethoxysilane.

1992 ◽  
Vol 271 ◽  
Author(s):  
Florence Babonneau ◽  
Laurence Bois ◽  
Jacques Livage
Keyword(s):  
Structural Characterization ◽  
Silica Gels ◽  
Condensation Process ◽  
Modified Silica ◽  
Polymeric Gels ◽  
Organically Modified ◽  
Organically Modified Silica ◽  
Hydrolysis Of ◽  
Modified Silica Gels

ABSTRACTThis work is part of a more general study on the structural characterization of organically modified silica gels that are usually prepared from tetrafunctional, trifunctional and difunctional alkoxides. The systems that were investigated in this paper are gels prepared from co-hydrolysis of dimethyldiethoxysilane (DEDMS) and tetraethoxysilane (TEOS). The condensation process was followed by 29Si and 17O liquid NMR and shows clearly evidence for co-condensation reactions. Gels with various DEDMS/TEOS ratios were studied by 29Si and 1H MAS-NMR. The results are clearly correlated to the change in physical properties of the materials, from flexible polymeric gels at high DEDMS content to crosslinked brittle networks at low DEDMS content.

Biohybrid of methylotrophic yeast and organically modified silica gels from sol–gel chemistry of tetraethoxysilane and dimethyldiethoxysilane

2019 ◽  
Vol 92 (2) ◽  
pp. 359-366
Author(s):  
O. N. Ponamoreva ◽  
D. G. Lavrova ◽  
O. A. Kamanina ◽  
P. V. Rybochkin ◽  
A. V. Machulin ◽  
...  
Keyword(s):  
Sol Gel ◽  
Methylotrophic Yeast ◽  
Silica Gels ◽  
Modified Silica ◽  
Organically Modified ◽  
Organically Modified Silica ◽  
Modified Silica Gels

Holographic diffraction gratings recording in organically modified silica gels: erratum

1997 ◽  
Vol 22 (3) ◽  
pp. 193
Author(s):  
P. Cheben ◽  
T. Belenguer ◽  
A. Nuñez ◽  
F. del Monte ◽  
D. Levy
Keyword(s):  
Diffraction Gratings ◽  
Silica Gels ◽  
Modified Silica ◽  
Organically Modified ◽  
Organically Modified Silica ◽  
Modified Silica Gels

Holographic diffraction gratings recording in organically modified silica gels

1996 ◽  
Vol 21 (22) ◽  
pp. 1857 ◽  
Author(s):  
P. Cheben ◽  
F. del Monte ◽  
D. Levy ◽  
T. Belenguer ◽  
A. Nuñez
Keyword(s):  
Diffraction Gratings ◽  
Silica Gels ◽  
Modified Silica ◽  
Organically Modified ◽  
Organically Modified Silica ◽  
Modified Silica Gels

DLS and AFM Studies on the Cluster Evolution of Organically Modified Silica Gels Catalyzed by a Super Strong Acid

2007 ◽  
Vol 40 (10) ◽  
pp. 3773-3778 ◽  
Author(s):  
Yusuke Takata ◽  
Tomohisa Norisuye ◽  
Satoshi Hirayama ◽  
Tsuyoshi Takemori ◽  
Qui Tran-Cong-Miyata ◽  
...  
Keyword(s):  
Strong Acid ◽  
Silica Gels ◽  
Modified Silica ◽  
Cluster Evolution ◽  
Organically Modified ◽  
Organically Modified Silica ◽  
Modified Silica Gels

Enhanced biodegradation of atrazine by bacteria encapsulated in organically modified silica gels

2018 ◽  
Vol 510 ◽  
pp. 57-68 ◽  
Author(s):  
Joey J. Benson ◽  
Jonathan K. Sakkos ◽  
Adi Radian ◽  
Lawrence P. Wackett ◽  
Alptekin Aksan
Keyword(s):  
Silica Gels ◽  
Modified Silica ◽  
Organically Modified ◽  
Enhanced Biodegradation ◽  
Organically Modified Silica ◽  
Modified Silica Gels
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