1. Saint Petersburg State University, 7/9 Universitetskaya Nab., 199034 Saint Petersburg, Russian Federation
2. Institute of Macromolecular Compounds of Russian Academy of Sciences, Bolshoii Pr. 31, 199004 Saint Petersburg, Russian Federation
3. Department
of Chemistry, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
4. Ufa State Petroleum Technological University, Kosmonavtov 1, 420062 Ufa, Bashkortostan, Russian Federation