1. Institute
for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
2. Department
of Chemical, Materials and Industrial Production Engineering, University of Naples “Federico II”, P.le Tecchio 80, 80125 Napoli, Italy
3. Institute
for Macromolecular Studies, National Research Council of Italy, Via
Bassini 15, 20133 Milano, Italy