IR and NMR time-resolved studies on the hydrolysis and condensation of methacryloxyalkylsilanes

被引：14

作者：

Stangar, Urska Lavrencic ^{[3
]}

Sassi, Alessandro ^{[4
]}

Venzo, Alfonso ^{[1
,2
]}

Zattin, Andrea ^{[1
,2
]}

Japelj, Bostjan ^{[3
]}

Orel, Boris ^{[3
]}

Gross, Silvia ^{[1
,2
]}

机构：

[1] Univ Padua, CNR ISTM, I-35131 Padua, Italy

[2] Univ Padua, Dipartimento Sci Chim, INSTM UdR Padova, I-35131 Padua, Italy

[3] Natl Inst Chem, Lab Spect Mat, Ljubljana 1000, Slovenia

[4] Univ Padua, CNR ISTM, Dipartimento Proc Chim Ingn, I-35131 Padua, Italy

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2009年 / 49卷 / 03期

关键词：

Methacryloxytrialkoxysilanes; Sol-gel; NMR; IR; Kinetics; Time resolved studies; MAMTES; MAPTMS; ORGANIC-INORGANIC HYBRID; MOLECULAR BUILDING-BLOCKS; OXIDES MO2-SIO2 M; SILICA; OXOCLUSTERS; FUNCTIONALIZATION; NANOPARTICLES; SPECTROSCOPY; EVOLUTION; BEHAVIOR;

D O I：

10.1007/s10971-008-1882-1

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：

The sol-gel reactions of the two methacrylate-modified silanes methacryloxymethyltriethoxysilane (MAMTES) and methacryloxypropyltrimethoxysilane (MAPTMS) were followed by using two independent time-resolved spectroscopic methods, viz., IR ATR and NMR with the aim to optimise their pre-hydrolysis times and consequently their use as precursors for hybrid materials. Time resolved measurements were carried out on the two systems under sol-gel conditions. Whereas the hydrolysis of both siloxanes is very fast, condensation proceeds gradually and is not completely finished within 5 h.

引用

页码：329 / 335

页数：7

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