1. a Laboratory of Macromolecular Chemistry, UMR (CNRS) 5076 , Ecole Nationale Supérieure de Chimie de Montpellier , Montpellier Cedex 1 , France
2. b LCAE-URAC18, Department of Chemistry, Science Faculty , Mohamed Ier University , Oujda , Morocco
3. c Faculté Pluridisciplinaire de Nador , Université Mohammed Ier , Nador , Morocco