Dr Edler¿s group has recently been studying the interactions between polymers and surfactant micelles in solution in order to understand how this drives film formation at the surface of these solutions. Previously commercial polymers with a limited range of structures and molecular weights have been used, and these experiments suggested that polymer branching could be contributing to film formation. In a Price/Edler collaboration, we have now synthesised a range of linear and branched polymers (graft and star polymers) of different molecular weights. Grazing incidence X-ray diffraction experiments have shown that films produced using these polymers contain a range of nanostructures, dependent on the polymer structure, so here we would like to correlate the solution phase interactions between the polymers and the mixed micelles in solution, with the structures seen in the films.