Hybrid RSiO1.5/B2O3 gels from modified silicon alkoxides and boric acid

Authors
Soraru, GD Babonneau, F Gervais, C Dallabona, N
Citation
Gd. Soraru et al., Hybrid RSiO1.5/B2O3 gels from modified silicon alkoxides and boric acid, J SOL-GEL S, 18(1), 2000, pp. 11-19
Citations number
15
Categorie Soggetti
Material Science & Engineering
Journal title
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
ISSN journal
09280707 → ACNP
Volume
18
Issue
1
Year of publication
2000
Pages
11 - 19
Database
ISI
SICI code
0928-0707(200004)18:1<11:HRGFMS>2.0.ZU;2-O
Abstract
A new sol-gel route, without any external water addition, for the preparati on of hybrid RSiO1.5/B2O3 gels (R = Me, Et, Vi) is reported. The gels are e asily synthesized by reacting B(OH)(3) with the liquid silicon alkoxide. Th e gels have been characterized mainly by FT-IR and B-11 MAS NMR spectroscop y. The results show that this new sol-gel process allows the formation of a homogeneous borosilicate gel in which trigonal BO3 units are incorporated into the siloxane network via B-O-Si bonds.