1. 1Facultad de Ciencias Exactas y Naturales, Universidad de Belgrano, Villanueva 1324, 1426 Buenos Aires, Argentina
2. 2Postfach 10 07 31, 63007 Offenbach, Germany
3. 3FB-8, Makromolekulare Chemie, Universität Siegen, Adolf-Reichwein-Strasse 2, D-57068 Siegen, Germany
4. 4University of Tokyo 6-11-21, Kozukayama, Tarumi-ku, Kobe, 655-0002, Japan
5. 5University of Sussex, Brighton, BN1 9RH, UK
6. 6University of Kent, Canterbury, CT2 7NH, UK
7. 7Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Praha 6, Czech Republic
8. 8Chemica Abstracts Service, P.O. Box 3012, 2540 Olentangy River Road, Columbus, OH 43210-0012, USA
9. 9Polymer Science and Technology Group, Manchester Material Science Centre, University of Manchester and UMIST, Grosvenor St. Manchester M1 7HS, UK
10. 10Charles University in Prague, Faculty of Sciences, Albertov 2030, CZ-128 40 Praha 2, Czech Republic
11. 11113 Meriden Drive, Canterbury Hills, Hockessin, DE 19707, USA