Capillary column inverse gas chromatography (CCIGC) will be used to study ternary polymer-solvent-solvent systems where both solvents are present in finite concentrations. Models have been developed and experiments have been designed (Davis, 2003). The experiments will be set up and run. Resultant data will then be used to test the models. A proposal to the National Science Foundation has been submitted. Pending its acceptance, funding will support researchers and equipment.