1. Department of Natural and Synthetic Polymers, "Gh. Asachi" Technical University of Iasi, Bd. D. Mangeron, nr. 71, 700050 Iasi, Romania, Universite de Pau et Pays de l'Adour, IPREM/EPCP (UMR CNRS 5254) Helioparc Pau Pyrénées, 2 avenue President Angot 64053 Pau Cedex 09, France
2. Department of Natural and Synthetic Polymers, "Gh. Asachi" Technical University of Iasi, Bd. D. Mangeron, nr. 71, 700050 Iasi, Romania,
3. Universite de Pau et Pays de l'Adour, IPREM/EPCP (UMR CNRS 5254) Helioparc Pau Pyrénées, 2 avenue President Angot 64053 Pau Cedex 09, France