Affiliation: | (1) Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol’shoi pr. 31, St. Petersburg, 199004, Russia;(2) Ioffe Physicotechnical institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia;(3) St. Petersburg State University, Universitetskii pr. 26, St. Petersburg, 198504, Russia |