Abstract
The interaction of several perfluoroalkyl ethers [CF3OCF3, CF2OCF2OCF2 , and CF3OCF2OCF3] and an acyl fluoride [CF3OCF(CF3)CFO] with iron and aluminum surfaces has been studied with x-ray photoelectron spectroscopy. The perfluoroalkyl ethers were found to not interact with either the clean iron surface or the clean aluminum surface. In contrast, the acyl fluoride compound was observed to readily decompose when in contact with the clean aluminum surface. The same molecule formed a surface carboxylate structure when in contact the clean iron surface. Interactions were also observed on native oxides of aluminum and iron exposed to acyl fluoride. For the aluminum surface, the degradation of the acyl fluoride molecule is not limited to the carbonyl group as it is for the iron surface. Rather, the entire molecule dissociates on the surface.
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Schedule a callMore From: Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films
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