SOL-GEL PRECURSORS - A SPECTROSCOPIC STUDY OF TRANSESTERIFICATION REACTIONS BETWEEN SILICON AND TITANIUM ALKOXIDES

被引：28

作者：

DIRE, S

BABONNEAU, F

机构：

[1] UNIV PARIS 06,F-75230 PARIS 05,FRANCE

[2] UNIV TRENT,DIPARTIMENTO INGN MAT,I-38050 TRENT,ITALY

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1994年 / 167卷 / 1-2期

关键词：

D O I：

10.1016/0022-3093(94)90363-8

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This study shows that transesterification reactions occur spontaneously when silicon (Si(OR)4) and titanium alkoxides (Ti(OR')4) are mixed, leading to the formation of mixed species, Si(OR)4-x(OR')x and Ti(OR')4-y(OR)y. The reaction between silicon ethoxide and titanium isopropoxide was characterized using multinuclear nuclear magnetic resonance (H-1, C-13, O-17, Si-29, Ti-47, Ti-49) and Ti K edge X-ray absorption (XANES and EXAFS) spectroscopies. Possible structures of the reaction products are suggested.

引用

页码：29 / 36

页数：8

共 19 条

[1] [Anonymous], 1990, DRYING SOL GEL SCI, DOI [10.1016/B978-0-08-057103-4.50013-1, DOI 10.1016/B978-0-08-057103-4.50013-1]
[2] XANES AND EXAFS STUDY OF TITANIUM ALKOXIDES
BABONNEAU, F
DOEUFF, S
LEAUSTIC, A
SANCHEZ, C
CARTIER, C
VERDAGUER, M
[J]. INORGANIC CHEMISTRY, 1988, 27 (18) : 3166 - 3172
[3] Bradley D. C., 1978, METAL ALKOXIDES
[4] CHEN KC, 1986, J NON-CRYST SOLIDS, V81, P227, DOI 10.1016/0022-3093(86)90272-3
[5] SOL-GEL SYNTHESIS OF SILOXANE OXIDE HYBRID COATINGS [SI(CH3)2O.MOX - M = SI, TI, ZR, AL] WITH LUMINESCENT PROPERTIES
DIRE, S
BABONNEAU, F
SANCHEZ, C
LIVAGE, J
[J]. JOURNAL OF MATERIALS CHEMISTRY, 1992, 2 (02) : 239 - 244
[6] PREPARATION OF TITANIA SILICA GLASSES BY THE GEL METHOD
HAYASHI, T
YAMADA, T
SAITO, H
[J]. JOURNAL OF MATERIALS SCIENCE, 1983, 18 (10) : 3137 - 3142
[7] TIO2-SIO2 GLASSES PREPARED FROM METAL ALKOXIDES
KAMIYA, K
SAKKA, S
[J]. JOURNAL OF MATERIALS SCIENCE, 1980, 15 (11) : 2937 - 2939
[8] MONOLITHIC ZIRCONIA GELS FROM METAL ORGANIC SOLUTIONS
KUNDU, D
GANGULI, D
[J]. JOURNAL OF MATERIALS SCIENCE LETTERS, 1986, 5 (03) : 293 - 295
[9] Structural Investigation of the Hydrolysis-Condensation Process of Titanium Alkoxides Ti(OR)(4) (OR = OPri, OEt) Modified by Acetylacetone. 1. Study of the Alkoxide Modification
Leaustic, Anne
Babonneau, Florence
Livage, Jacques
[J]. CHEMISTRY OF MATERIALS, 1989, 1 (02) : 240 - 247
[10] SOL-GEL CHEMISTRY OF TRANSITION-METAL OXIDES
LIVAGE, J
HENRY, M
SANCHEZ, C
[J]. PROGRESS IN SOLID STATE CHEMISTRY, 1988, 18 (04) : 259 - 341

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