Polymerization of ethylene glycol dimethacrylate ((EGDM), using an algerian clay as eco-catalyst (maghnite-h+ and maghnite-na+)

Abstract

In this paper we have explored a novel and green method to synthesis and polymerize ethylene glycol dimethacrylate (EGDM). This technique consists on using Maghnite (Algerian clay) as a green catalyst to replace toxic catalysts. The Algerian clay has been modified using two ion exchange process to obtain Maghnite-H+ (proton exchanged process) and Maghnite-Na+ (sodium exchanged process). Synthesis ex-periments of EGDM and Poly (EGDM) are performed in bulk respecting the principles of green chemis-try. The structure of the obtained monomer and the obtained polymer was confirmed by FT-IR, 1H-NMR and 13C-NMR, where the methacrylate end groups are clearly visible. The presence of unsaturat-ed end group in the structure of monomer was confirmed by UV-Visible analysis. Thermogravimetric Analysis (TGA) was used to study the thermal stability of these obtained products.