1. Departments of Polymer Science and Chemistry, The University of Akron, Akron, OH 44325‐4717, USA, Fax: (internat.) + 1‐330/972‐2413
2. Department of Chemistry, University of South Florida, Tampa, FL 33620 USA
3. Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology and Dutch Polymer Institute, P. O. Box 513, 5600 MB Eindhoven, The Netherlands, Fax: (internat.) + 31‐40/247‐4186