1. Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
2. Joint Laboratory of Solid State Chemistry, Faculty of Chemical Technology, University of Pardubice, 532 10 Pardubice, Czech Republic
3. Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, 532 10 Pardubice, Czech Republic