Copolymerization of ε-Caprolactone WithTetrahydrofuran by a solid acid, in the Presence of Acetic Anhydride

Maghnite is a montmorillonite sheet silicate clay that is exchanged with protons to produce Maghnite-H + (MagH + ). This non-toxic and cheaper cationic catalyst was used for the copolymerization of e-caprolactone (CL) with tetrahydrofuran (THF), in presence of acetic anhydride (AA). The effects of the amounts of Mag-H + , acetic anhydride and the temperature on the synthesis of poly (e-caprolactone-co-tetrahydrofuran) were studied. The copolymer obtained was characterized by 1 H-NMR and IR spectroscopy.