A neutron reflectometry study of polystyrene network interfaces M. Geoghegan, F. Boué, G. Bacri, A. Menelle and D. G. Bucknall Eur. Phys. J. B, 3 1 (1998) 83-96 Published online: 15 May 1998 DOI: 10.1007/s100510050286