Vibrational spectra of phenyltriethoxysilane, phenyltrimethoxysilane and their sol-gels

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Ying-Sing LiSorrie Ceesay

Abstract

Raman and infrared spectra of phenyltriethoxysilane and phenyltrimethoxysilane have been recorded. These silane coupling agents (SCAs) have been used as precursors to prepare sol-gels using acid or base as catalyst under different solution conditions. From the vibrational spectroscopic identification, it was found that the major sol-gel products obtained from different catalysts and different solvents were essentially the same. Vibrational assignments for the SCAs, sol-gel and xerogel have been made based on the group frequencies, the spectral variation collected at different physical and chemical states and the previous spectroscopic studies of similar molecules. The compositions of xerogels after thermal treatments at different temperatures have been analyzed and identified by using infrared spectroscopic method along with thermal gravimetric analysis. Results from the experimental treatments for the xerogels indicated that the xerogel baking at 118 degrees C served to evaporate the sample moisture, the curing at 225 degrees C helped to complete the condensation reaction, and the treatment at 600 degrees C caused the decomposition of the organic group but the siloxane net-work remained essentially unchanged.

Citations

Jan 30, 2013·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Pierre-Yves Collart DutilleulBernard Levallois
Mar 21, 2015·Journal of Colloid and Interface Science·Wenbin YuFanrong Chen
Jun 6, 2015·Forensic Science International : Synergy·Frank M HauserSimon Officer
Jan 24, 2020·Methods and Applications in Fluorescence·Izabela OlszowskaJoanna Niedziółka-Jönsson
Apr 28, 2017·Nanoscale Research Letters·Dariya SavchenkoAlexei Nazarov
Sep 22, 2021·Chemistry : a European Journal·Jan-Falk KannengießerGuido Kickelbick

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