Abstract
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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Acknowledgments
The National Research Council (CNR), Italy and the INSTM Consortium (Italy) as well as the Slovenian Research Agency are acknowledged for financial support. Mr. Antonio Ravazzolo is gratefully acknowledged for technical support. Dr. Angela Surca Vuk is gratefully acknowledged for helpful discussion. The ARRS Slovenian Agency and the Ministero degli Affari Esteri, Rome, Italy are gratefully acknowledged for the financial support for the researchers mobility in the framework of a Italian-Slovenian bilateral project.
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Lavrencic Stangar, U., Sassi, A., Venzo, A. et al. IR and NMR time-resolved studies on the hydrolysis and condensation of methacryloxyalkylsilanes. J Sol-Gel Sci Technol 49, 329–335 (2009). https://doi.org/10.1007/s10971-008-1882-1
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DOI: https://doi.org/10.1007/s10971-008-1882-1