1. West Pomeranian University of Technology , Szczecin, Faculty of Chemical Technology and Engineering, Polymer Institute , Piastów Ave. 42, 71-065 Szczecin , Poland
2. West Pomeranian University of Technology , Szczecin, Faculty of Chemical Technology and Engineering, Institute of Inorganic Chemical Technology and Environmental Engineering , Piastów Ave. 42, 71-065 Szczecin , Poland