Homopolymerization of methacrylamide by anionic process under effect of Maghnite-Na+ (Algerian MMT)

The present study describes a new way for synthesis of methacrylamide (MAM) and it's homologue polymethacrylamide (PMAM) under effect of montmorillonite clay (Algerian MMT). The interlayer cation of montmorillonite clay was exchanged with Na + protons (anionic process). Monomer was successfully synthesized by the condensation of ammonia with methacrylic anhydride in bulk (without solvent) and the polymer with increasing anionic catalyst (Mag-Na+) in Tetrahydrofuran THF. Furthermore, the obtained monomer (MAM) and polymer (PMAM) were characterized and confirmed by Infrared Spectroscopy (FT-IR), 1H nuclear magnetic resonance (NMR) spectroscopy and Thermal properties by thermogravimetric analysis (TGA). The conversion and yield of monomer-polymer increased with the increase of the amount of catalyst Maghnite-Na+, the reactivity of the ammonia related to its basicity and the effect of amine substitution with methacrylic anhydride involved electron donor forces of the substitution group. (c) 2019 Elsevier B.V. All rights reserved.