1. Center for Polymers & Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara CA 93106 USA
2. University of Lille CNRS Centrale Lille Institut Univ. Artois, UMR 8181, Unité de Catalyse et Chimie du Solide Lille F‐59000 France
3. Centre of Molecular and Macromolecular Studies Polish Academy of Sciences Sienkiewicza 112 Lodz 90‐363 Poland
4. Department of Chemistry and Biochemistry The University of Arizona Tucson AZ 85721‐0088 USA
5. Department of Organic Material Science and Engineering School of Chemical Engineering Pusan National University Busan 46241 Republic of Korea