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

被引：0
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作者：
Urska Lavrencic Stangar
Alessandro Sassi
Alfonso Venzo
Andrea Zattin
Boštjan Japelj
Boris Orel
Silvia Gross
机构：
[1] National Institute of Chemistry,Laboratory for Spectroscopy of Materials
[2] University of Nova Gorica,Laboratory for Environmental Research
[3] Università degli Studi di Padova,Dipartimento di Processi Chimici dell’Ingegneria, CNR–ISTM
[4] Università degli Studi di Padova,CNR–ISTM and Dipartimento di Scienze Chimiche, INSTM UdR di Padova
来源：
Journal of Sol-Gel Science and Technology | 2009年 / 49卷
关键词：
Methacryloxytrialkoxysilanes; Sol–gel; NMR; IR; Kinetics; Time resolved studies; MAMTES; MAPTMS;
D O I：
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中图分类号：
学科分类号：
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.
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页码：329 / 335
页数：6
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