1. Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička, Zagreb, Croatia
2. Production and Processing of Thermoplastics Ltd, ISOKON Mestni trg 5a, Slovenske Konjice, Slovenia
3. Faculty of Chemical Engineering and Technology, University of Zagreb, Savska, Zagreb, Croatia
4. Institute of Technology, FEB Maribor, University of Maribor, Razlagova, Maribor, Slovenia