1. Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation, http://ptchemin.chem.spbu.ru/
2. Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan, http://www.ch.ntu.edu.tw/~ptchou/
3. Institute of Macromolecular Compounds of the Russian Academy of Sciences, V. O. Bolshoi Pr. 31, 199004 Saint Petersburg, Russian Federation