1. Organic & Macromolecular Chemistry and Material Science & Catalysis, University of Ulm, 89081 Ulm, Germany, Surfactant & Colloid Group, Department of Chemistry, University of Hull, Hull HU6 7RX, U.K., Department of Polymer Physics, BASF Aktiengestellschaft, 67056 Ludwigshafen, Germany, and Physical Chemistry, Chemnitz University of Technology, 09111 Chemnitz, Germany