1. Faculty of Chemical Engineering and Technology University of Zagreb, Marulicev trg 19, 10000 Zagreb, Croatia,
2. Faculty of Chemical Engineering and Technology University of Zagreb, Marulicev trg 19, 10000 Zagreb, Croatia
3. Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
4. PLIVA, Research and Development Ltd Prilaz baruna Filipovica 29, 10 000 Zagreb, Croatia