FT-IR spectroscopy of acid-modified titanium alkoxides: Investigations on the nature of carboxylate coordination and degree of complexation

被引：87

作者：

Perrin, FX ^{[1
]}

Nguyen, V ^{[1
]}

Vernet, JL ^{[1
]}

机构：

[1] Univ Toulon & Var, Lab Chim Appl, F-83957 La Garde, France

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2003年 / 28卷 / 02期

关键词：

hybrid polymers; precursor chemistry; titanium alkoxides; ATR;

D O I：

10.1023/A:1026081100860

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：

Modification of titanium butoxide by acetic acid has been studied by means of FT-IR spectroscopy. A deconvolution procedure was carried out to give further insight concerning the coordination modes of acetate ligands in TiaOb(OBu)(c)(OAc)(d) complexes. From these results, molecular structures of the acetic acid modified precursor in a stoichiometric Ti(OBu)(4)/AcOH (1:1) were proposed. On the basis of ATR spectroscopic data, the degree of complexation in TiaOb(OBu)(c)(OAc)(d) oligomers as a function of the molar ratio Ti/AcOH was also estimated. Organic/inorganic hybrids were prepared from titanium butoxide and acrylic terpolymers bearing active acid groups via the sol-gel process. The interactions between the acid groups of the polymer and titanium butoxide were investigated by FT-IR spectroscopy and the carboxylate coordination modes were compared with the coordination modes in the acetato complexes.

引用

页码：205 / 215

页数：11

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