Abstract

Cationic polymerization of oxetan by an acid exchanged montmorillonite clay in the presence of acetic anhydride

Author(s): Araf Sad Dalil, Mohammed Issam Ferrahi, Mohammed Belbachir

The polymerization of oxetan with acetic anhydride catalyzed byMaghnite- H+ (Mag-H) in dichloromethan (CH2Cl2) as solvant was investigated. Maghnite is a montmorillonite sheet silicate clay that is exchanged with protons to produceMaghnite-H+ [1]. It was found that the polymerization is initiated byMag-H in the presence of acetic anhydride at 250C. The effects of the amounts of Mag-H and acetic anhydride were studied. The polymerization yield increased as the proportions of catalyst and acetic anhydride were increased. The reactions were monitored by gel permeation chromatography and 1H-NMR spectroscopy