1. Inst. of Macromolecular Chemistry of the National Academy of Sciences of Ukraine, Kiev, Ukraine, UA, (Corresponding author) e-mail: petmol@ukr.net.
2. Co. Barkor LLC, Kyiv, UA.
3. Inst. of Engineering Thermophysics of the National Academy of Sciences of Ukraine, Kiev, UA.
4. Intensive Technologies Ltd., Kyiv, UA.