2010•Unpublished venueRequires access

Homogeneous graft copolymerization of chitosan in ionic liquid

Changcheng Wu

Abstract

The homogeneous graft copolymerization of L-lactide(L-LA)onto chitosan(CS)using ionic liquid 1-butyl-3-methylimidazolium chloride([BMIM]Cl)as reaction medium was studied.The effects of various reaction parameters on grafting percentage,such as monomer content,catalyst concentration,reaction time and reaction temperature were investigated.The obtained chitosan grafted poly(L-lactide)(CL)was characterized with FTIR,1H NMR and TG.The results showed that the reaction efficiency of homogeneous graft copolymerization of L-LA and CS in ionic liquid was higher than that of non-homogeneous graft copolymerization.

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Key concepts: Copolymer, Ionic liquid, Chitosan, Monomer, Polymer chemistry, Grafting, Homogeneous, Chemistry