Fourier Transform Diffuse Reflectance Infrared Study of Fibers, Polymer Films, and Coatings
A unique modification of the diffuse reflectance FT-IR (DRTFT) technique has been utillzed in the study of surface structure by vibrational spectroscopy. This approach has extended the use of DRIFT to fiber, polymer film, and coating surface characterization. High sensitivity, elimination of orientation effects, and a non-destructive sampling procedure are valuable aspects of the technique. The modification of the standard DRIFT experiment involves the use of a granular overlayer such as KBr whereby the relative contribution of the surface to the total spectrum can be controlled by the amount and particle size of the overlayer. Examples of this approach are described in this paper.
KeywordsPolymer Film Ethylene Terephthalate Vibrational Spectroscopy Vinylidene Fluoride Fiber Sample
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