Polyurethane foams (PUFs) are commonly prepared by mixing Pluronic type copolymers and isocyanate reactive monomers in the presence of additives e.g. catalysts, blowing agent and surfactant. The physical properties of the resultant foam (cell morphology and size, capacity for water adsorption, thermal insulation etc) are strongly dependent on the surfactant blend employed in the foam recipe. Here, we wish to develop an in-situ foam generator on SANS2d to explore the interfacial properties of these interesting materials, and the role that the surfactant plays in such under both wet and dry conditions (i.e. static foams as well as draining foams).The over-arching aims of this new PhD project is to better understand the role of the surfactant in stabilising the foams structure, in preparation for the inclusion of novel additives, both small molecule and particulate in nature.