1. Center on Polymer Interfaces and Macromolecular Assemblies (CPIMA), Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, Institut fur Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universitat, Mainz D-55099, Germany, and Max-Planck-Institut fur Polymerforschung, Mainz D-55128, Germany