Trends in colloid and interface science XII : [11th Conference of the European Colloid and Interface Society (ECIS 97) September 14 19 1997 in Lunteren] The 11th Conference of the European Colloid and Interface Society (ECIS) was held in September 1997 in Lunteren The Netherlands. The scientific program covered theoretical experimental and technical aspects of modern colloid and interface science. This volume contains a selection of contributions in the following fields: New topics in colloid science Polymer colloids Rheology Surfactant colloids Polymers and surfactants at interfaces