1. Institute for Polymers; Composites and Biomaterials; National Research Council of (Italy); P.le E. Fermi 1 80055 Portici Italy
2. Department of Chemical, Materials and Production Engineering; University of Naples Federico II; P.le Tecchio 80 80125 Napoli Italy
3. Institute for the Study of Nanostructured Materials; National Research Council of (Italy); Via Salaria km 29300 00015 Monterotondo Italy