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
收藏
页码：329 / 335
页数：7
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