Macromolecules, volume 54, issue 4, pages 1961-1975
Silica-Based Aerogels with Tunable Properties: The Highly Efficient BF3-Catalyzed Preparation and Look inside Their Structure
Novikov Roman G.
2, 3
,
Kashin Alexey S
3
,
Polezhaev Alexander
1, 4
,
Vasil’ev V. A.
1
,
Muzafarov Aziz M.
1, 5
Publication type: Journal Article
Publication date: 2021-02-11
Journal:
Macromolecules
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 5.5
ISSN: 00249297, 15205835
Materials Chemistry
Organic Chemistry
Inorganic Chemistry
Polymers and Plastics
Abstract
This work presents a solution to one of the most fundamentally and practically important challenges in the production of silica-based aerogels, time consumption and expensiveness of these processes, with the main focus on the sol–gel process. We suggested a highly efficient BF3-catalyzed method for the production of aerogels, which allows one to shorten the stage of the formation of a (wet) gel to 5 min, the stage of gel aging to 0, while the stage of gel workup is not required; the duration of these stages, according to the literature, ranges from days to weeks. The process is performed using commercially available, simple, and inexpensive reagents and under mild reaction conditions: BF3·Et2O as the catalyst, acetone as the solvent, room temperature, and at atmospheric pressure. This approach allows one to quickly obtain both classic opaque and transparent silica-based aerogels from Si(OMe)4 or Si(OEt)4 as well as transparent superhydrophobic ones from their mixtures with MeSi(OMe)3 or Me2Si(OMe)2. In addition, we succeeded in obtaining a series of aerogels with various organic and inorganic additives, in particular, in this way, luminescent and metallasiloxane ones were prepared. Also, the effect of the method for producing silica-based aerogels on their (supra)molecular structure and morphology was thoroughly studied by a set of physicochemical methods of analysis: scanning electron and light microscopy, X-ray microtomography, and NMR experiments. These findings allow to tune the density, transparency, mechanical strength, hydrophobicity, and other properties depending on the need by choosing the right technique.
Citations by journals
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Polymers
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2 publications, 22.22%
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1 publication, 11.11%
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1 publication, 11.11%
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1 publication, 11.11%
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1
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Citations by publishers
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1
2
3
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Royal Society of Chemistry (RSC)
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3 publications, 33.33%
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Multidisciplinary Digital Publishing Institute (MDPI)
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Multidisciplinary Digital Publishing Institute (MDPI)
2 publications, 22.22%
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Elsevier
|
Elsevier
2 publications, 22.22%
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American Chemical Society (ACS)
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American Chemical Society (ACS)
1 publication, 11.11%
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Wiley
|
Wiley
1 publication, 11.11%
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1
2
3
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Kholodkov D. N. et al. Silica-Based Aerogels with Tunable Properties: The Highly Efficient BF3-Catalyzed Preparation and Look inside Their Structure // Macromolecules. 2021. Vol. 54. No. 4. pp. 1961-1975.
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Kholodkov D. N., Arzumanyan A. V., Novikov R. G., Kashin A. S., Polezhaev A., Vasil’ev V. A., Muzafarov A. M. Silica-Based Aerogels with Tunable Properties: The Highly Efficient BF3-Catalyzed Preparation and Look inside Their Structure // Macromolecules. 2021. Vol. 54. No. 4. pp. 1961-1975.
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TY - JOUR
DO - 10.1021/acs.macromol.0c02598
UR - https://doi.org/10.1021%2Facs.macromol.0c02598
TI - Silica-Based Aerogels with Tunable Properties: The Highly Efficient BF3-Catalyzed Preparation and Look inside Their Structure
T2 - Macromolecules
AU - Kholodkov, Dmitry N
AU - Arzumanyan, Ashot V
AU - Novikov, Roman G.
AU - Muzafarov, Aziz M.
AU - Kashin, Alexey S
AU - Polezhaev, Alexander
AU - Vasil’ev, V. A.
PY - 2021
DA - 2021/02/11 00:00:00
PB - American Chemical Society (ACS)
SP - 1961-1975
IS - 4
VL - 54
SN - 0024-9297
SN - 1520-5835
ER -
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@article{2021_Kholodkov,
author = {Dmitry N Kholodkov and Ashot V Arzumanyan and Roman G. Novikov and Aziz M. Muzafarov and Alexey S Kashin and Alexander Polezhaev and V. A. Vasil’ev},
title = {Silica-Based Aerogels with Tunable Properties: The Highly Efficient BF3-Catalyzed Preparation and Look inside Their Structure},
journal = {Macromolecules},
year = {2021},
volume = {54},
publisher = {American Chemical Society (ACS)},
month = {feb},
url = {https://doi.org/10.1021%2Facs.macromol.0c02598},
number = {4},
pages = {1961--1975},
doi = {10.1021/acs.macromol.0c02598}
}
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MLA
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Kholodkov, Dmitry N., et al. “Silica-Based Aerogels with Tunable Properties: The Highly Efficient BF3-Catalyzed Preparation and Look inside Their Structure.” Macromolecules, vol. 54, no. 4, Feb. 2021, pp. 1961-1975. https://doi.org/10.1021%2Facs.macromol.0c02598.