We have been studying the formation of solid polymer-surfactant films formed from cationic surfactants with PEI. We wish to use the highly organised mesostructures formed in the films as hosts for polymerisation of styrene to prepare polymer nanostructures which will reinforce our films. Previously polymerisation of monomers in swollen micelles has destroyed the mesophase due to rapid diffusion of surfactant during the reaction. In our films the high viscosity of the hydrogel may prevent this rearrangement of micelles. In this experiment we wish to study the polymerization of styrene encapsulated in our films which have either been harvested onto a silicon wafer after growth at the solution surface, or prepared by spray coating the PEI/surfactant/styrene onto the silicon wafer to form a solid film. We will follow the polymerization using time-resolved neutron reflectivity.