Cationic Ring Opening polymerization of ε-caprolactam by a Montmorillonite Clay Catalyst

The ring opening bulk polymerization of ε-caprolactam catalyzed by Maghnite-H+ was reported. Maghnite-H+ is a montmorillonite silicate sheet clay was prepared through a straight forward proton exchange process. The effect of the amount of catalyst, and temperature was studied. Increasing Maghnite-H+ proportion and temperature produced the increase in ε-caprolactam conversion. The kinetics indicated that the polymerization rate is first order with respect to monomer concentration. Mechanism studies showed that monomer inserted into the growing chains with the acyl–oxygen bond scission rather than the break of alkyl–oxygen bond. ？ 2014 BCREC UNDIP. All rights reserved Submitted: 3rd October 2013; Revised: 28th February 2014; Accepted: 1st March 2014 [How to Cite: Kherroub, D.E., Belbachir, M., Lamouri, S. (2014). Cationic Ring Opening Polymeriza-tion of ε-caprolactam by a Montmorillonite Clay Catalyst. Bulletin of Chemical Reaction Engineering & Catalysis, 9 (1): 74-79. (doi:10.9767/bcrec.9.1.5555.74-80)] [Permalink/DOI: http://dx.doi.org/10.9767/bcrec.9.1.5555.74-80