Abstract

Sol-gel processes are applied to prepare organic-inorganic composite coatings. The purpose of this report is to evaluate the possibility of tuning the oxygen permeability of the resulting coatings. It is proposed that if the oxygen permeability is largely controlled by the hydrophobic character and the pore sizes of membranes, then the permeability of the solgel coatings could be tuned by adjusting the composition of the organosilane precursor. The oxygen permeability is measured by the selective oxygen quenching of phosphorescent probes, such as platinum octaethylporphine (PtOEP). The application of such sol-gel coatings for optical fiber oxygen sensors will also be discussed.

Keywords

Oxygen permeabilitySol-gelOxygenPermeability (electromagnetism)Materials sciencePlatinumChemical engineeringPhosphorescenceOxygen sensorMembraneChemistryNanotechnologyOrganic chemistryCatalysisOpticsFluorescence

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Publication Info

Year
1992
Type
article
Volume
46
Issue
8
Pages
1266-1272
Citations
33
Access
Closed

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Cite This

Hsue-Yang Liu, Steven C. Switalski, Bradley K. Coltrain et al. (1992). Oxygen Permeability of Sol-Gel Coatings. Applied Spectroscopy , 46 (8) , 1266-1272. https://doi.org/10.1366/0003702924123881

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DOI
10.1366/0003702924123881