A study of the surfaces of films based on cellulose and its mixtures with polymethyl methacrylate using attenuated total internal reflection IR spectroscopy

Abstract

Attenuated total internal reflection (ATR) IR spectroscopy is used in combination with electron microscopy to study films based on cellulose and mixtures of cellulose with polymethyl methacrylate. The concentrations of the component in the volume and on the surface of the bi-component films differ significantly. The surface in contact with air on the formation of the film shows an excess concentration of cellulose macromolecules compared with the bulk of the specimen, and the surface in contact with the glass shows a higher relative content of polymethyl methacrylate.