1. Institute of Ecology of the Volga River Basin, Russian Academy of Science; 10 Komzina St Togliatti 445003 Russia
2. State Research Institute of Chemistry and Technology of Organoelement Compounds; 38 Shosse Entuziastov Moscow 111123 Russia
3. Laboratoire de Chimie des Polymères Organiques, UMR 5629, CNRS/UB1/IPB, University of Bordeaux; 16 avenue Pey Berland Pessac Cedex 33607 France
4. Research Institute for Physical Chemical Problems of the Belarusian State University; 14 Leningradskaya St Minsk 220030 Belarus