1. Department
of Molecular Biophysics and Polymer Physics, St. Petersburg State University, Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia
2. Institute
of Organic Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55099 Mainz, Germany
3. Institute
of Macromolecular Compounds, Russian Academy of Science, 199004 St. Petersburg, Russia