EPR monitoring of sol-gel processes - Code: CP7

A. Shames; O. Lev; Y. Berkovich; B. Iosefzon-Kuyavskaya

doi:10.1007/BF00486251

EPR monitoring of sol-gel processes - Code: CP7

A. Shames^*, O. Lev, Y. Berkovich, B. Iosefzon-Kuyavskaya

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Electron Paramagnetic Resonance (EPR) spectra of paramagnetic probes (free radical, 4-oxo-Tempo for non-doped glasses and vanadyl sulfate for doped silica glass) provide a non-intrusive means of monitoring of the dynamics of the sol-gel process. The free radical spectra parameters (rotation correlation time, isotropic hyperfine interaction parameter and line width) reflect changes in viscosity and polarity in the vicinity of the spin label. The EPR spectra of vanadyl can be used for monitoring the sol-gel process in that different types of mixed vanadyl complexes are formed during glass molding.

Original language	English
Pages (from-to)	255-258
Number of pages	4
Journal	Journal of Sol-Gel Science and Technology
Volume	2
Issue number	1-3
DOIs	https://doi.org/10.1007/BF00486251
State	Published - Jan 1994

Keywords

EPR
Tempo
monitoring
spin label

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abstract = "Electron Paramagnetic Resonance (EPR) spectra of paramagnetic probes (free radical, 4-oxo-Tempo for non-doped glasses and vanadyl sulfate for doped silica glass) provide a non-intrusive means of monitoring of the dynamics of the sol-gel process. The free radical spectra parameters (rotation correlation time, isotropic hyperfine interaction parameter and line width) reflect changes in viscosity and polarity in the vicinity of the spin label. The EPR spectra of vanadyl can be used for monitoring the sol-gel process in that different types of mixed vanadyl complexes are formed during glass molding.",

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author = "A. Shames and O. Lev and Y. Berkovich and B. Iosefzon-Kuyavskaya",

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AU - Berkovich, Y.

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PY - 1994/1

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N2 - Electron Paramagnetic Resonance (EPR) spectra of paramagnetic probes (free radical, 4-oxo-Tempo for non-doped glasses and vanadyl sulfate for doped silica glass) provide a non-intrusive means of monitoring of the dynamics of the sol-gel process. The free radical spectra parameters (rotation correlation time, isotropic hyperfine interaction parameter and line width) reflect changes in viscosity and polarity in the vicinity of the spin label. The EPR spectra of vanadyl can be used for monitoring the sol-gel process in that different types of mixed vanadyl complexes are formed during glass molding.

AB - Electron Paramagnetic Resonance (EPR) spectra of paramagnetic probes (free radical, 4-oxo-Tempo for non-doped glasses and vanadyl sulfate for doped silica glass) provide a non-intrusive means of monitoring of the dynamics of the sol-gel process. The free radical spectra parameters (rotation correlation time, isotropic hyperfine interaction parameter and line width) reflect changes in viscosity and polarity in the vicinity of the spin label. The EPR spectra of vanadyl can be used for monitoring the sol-gel process in that different types of mixed vanadyl complexes are formed during glass molding.

KW - EPR

KW - Tempo

KW - monitoring

KW - spin label

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IS - 1-3

ER -

EPR monitoring of sol-gel processes - Code: CP7

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Keywords

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