1. Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr., 31, Saint-Petersburg, 199004, Russia
2. State University of Information Technologies, Mechanics and Optics, Kronverksky Pr. 49, bldg. A, St. Petersburg 197101, Russia
3. Institute of Macromolecular Chemistry AS CR, Heyrovsky Sq. 2, Prague, Czech Republic