1. Laboratory
of Macromolecular Photochemistry and Engineering, University of Haute-Alsace, ENSCMu, 3 bis rue Alfred Werner, 68093 Mulhouse, Cedex, France
2. Institut de Science des Matériaux de Mulhouse,
UMR-CNRS 7361, University of Haute-Alsace, 3 rue Alfred Werner 68093, Mulhouse, Cedex, France