1. Institute for Polymers, Composites and Biomaterials (IPCB-CNR); P.le E. Fermi 1 Portici Naples 80055 Italy
2. Institute for Macromolecular Studies (ISMAC)-CNR; Via E. Bassini 15 Milano 20133 Italy
3. Adler Plastic; Corso Savona 45 Villastellone Torino 10029 Italy