High internal phase emulsions (SANS and USANS analysis)

Small angle neutron scattering (SANS) and ultra small angle neutron scattering (USANS) measurements have continued from high internal phase emulsions (90% aqueous phase/10% oil phase). The focus has been to understand the role of reverse micelles and co-surfactants - synthesised by the RAFT method - on emulsion stability and viscosity. Very large changes in both properties, important for practical applications, have been found. The scattering experiments, especially using neutron contrast variation by swapping deuterium for hydrogen in the oil, surfactant and aqueous phases, continue to be quite fruitful in arriving at a molecular mechanistic understanding of bulk properties.