Abstract
The surface properties of a commercially available photocured resin were investigated using a combination of inverse gas chromatography (IGC) and X-ray photoelectron spectroscopy (XPS). Results were compared with those obtained from a sample of a modified resin, in which one of the components was removed from the formulation, and poly(methyl methacrylate). IGC results indicated that modification of the resin produced differences in the acid-base properties of the material, with the modified resin behaving in a less basic manner. XPS data revealed very little difference between the two resins.