A new strategy for synthesis of microspheres amphiphilic block copolymer based on Epichlorohydrin and N-viny-2-pyrrolidone induced by an ecologic clay catalyst called Maghnite-H+ (Algerian MMT)

Abstract

Biodegradable copolymer microsphere of poly(epichloridrin-co-NVP) was synthesized by a ring-opening polymerization process of epichloridrin and n-vinyl-2-pyrrolidone. The copolymerization of epichloridrin (ECH) and n-vinyl-2-pyrrolidone (NVP) catalyzed by maghnite-H + (mag-H + ) was investigated. The effect of some factors such as the amount of the catalyst (maghnite-H + ), the temperature of reaction and the solvent were discussed. It was found that the copolymerization rate increased with increase in the temperature and the proportion of catalyst, and it was larger in nonpolar solvents. The product was characterized by various technique characterization such as FTIR and 1H-NMR.