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Surface modification of silica gels with aminoorganosilanes

KC Vrancken, K Possemiers, Pascal Van Der Voort UGent and Etienne F Vansant (1995) COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS. 98(3). p.235-241
abstract
The surface modification reaction of silica gel with aminoorganosilanes proceeds in two steps. For both the reaction step and the curing step, the chemical and physical interactions of the silane molecules with the silica surface have been modelled. From ethanol leaching tests, the reaction phase interaction, in dry conditions, may be characterized as 22% proton transfer, 10% hydrogen bonding and 68% siloxane bonding. The deposition of the aminosilane molecules is governed by the specific surface area and surface hydration. For the bifunctional N-beta-aminoethyl-gamma-aminopropyltrimethoxysilane, a two-step deposition is observed. The rate of siloxane bonding in the curing phase is limited by the number of alkoxy groups, and results in a turnover of the aminosilane molecules. A new application of aminosilane-modified silica gel is developed in converting the aminosilane layer to SiC. Thus, the liquid phase path of the chemical surface coating process, for the controlled synthesis of advanced ceramics, is set up.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
DEHYDROXYLATED SILICA, WATER, GAMMA-AMINOPROPYLTRIETHOXYSILANE, NUCLEAR-MAGNETIC-RESONANCE, SURFACE MODIFICATION, SILICA GELS, AMINOORGANOSILANES
journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Colloid Surf. A-Physicochem. Eng. Asp.
volume
98
issue
3
pages
235 - 241
Web of Science type
Article
ISSN
0927-7757
DOI
10.1016/0927-7757(95)03119-X
language
English
UGent publication?
no
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
346040
handle
http://hdl.handle.net/1854/LU-346040
date created
2006-09-19 11:45:00
date last changed
2018-01-29 12:12:02
@article{346040,
  abstract     = {The surface modification reaction of silica gel with aminoorganosilanes proceeds in two steps. For both the reaction step and the curing step, the chemical and physical interactions of the silane molecules with the silica surface have been modelled.
From ethanol leaching tests, the reaction phase interaction, in dry conditions, may be characterized as 22\% proton transfer, 10\% hydrogen bonding and 68\% siloxane bonding. The deposition of the aminosilane molecules is governed by the specific surface area and surface hydration. For the bifunctional N-beta-aminoethyl-gamma-aminopropyltrimethoxysilane, a two-step deposition is observed.
The rate of siloxane bonding in the curing phase is limited by the number of alkoxy groups, and results in a turnover of the aminosilane molecules.
A new application of aminosilane-modified silica gel is developed in converting the aminosilane layer to SiC. Thus, the liquid phase path of the chemical surface coating process, for the controlled synthesis of advanced ceramics, is set up.},
  author       = {Vrancken, KC and Possemiers, K and Van Der Voort, Pascal and Vansant, Etienne F},
  issn         = {0927-7757},
  journal      = {COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS},
  keyword      = {DEHYDROXYLATED SILICA,WATER,GAMMA-AMINOPROPYLTRIETHOXYSILANE,NUCLEAR-MAGNETIC-RESONANCE,SURFACE MODIFICATION,SILICA GELS,AMINOORGANOSILANES},
  language     = {eng},
  number       = {3},
  pages        = {235--241},
  title        = {Surface modification of silica gels with aminoorganosilanes},
  url          = {http://dx.doi.org/10.1016/0927-7757(95)03119-X},
  volume       = {98},
  year         = {1995},
}

Chicago
Vrancken, KC, K Possemiers, Pascal Van Der Voort, and Etienne F Vansant. 1995. “Surface Modification of Silica Gels with Aminoorganosilanes.” Colloids and Surfaces A-physicochemical and Engineering Aspects 98 (3): 235–241.
APA
Vrancken, KC, Possemiers, K., Van Der Voort, P., & Vansant, E. F. (1995). Surface modification of silica gels with aminoorganosilanes. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 98(3), 235–241.
Vancouver
1.
Vrancken K, Possemiers K, Van Der Voort P, Vansant EF. Surface modification of silica gels with aminoorganosilanes. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS. 1995;98(3):235–41.
MLA
Vrancken, KC, K Possemiers, Pascal Van Der Voort, et al. “Surface Modification of Silica Gels with Aminoorganosilanes.” COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 98.3 (1995): 235–241. Print.