DOI: https://doi.org/10.9767/bcrec.9.1.5555.74-80

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

Laboratoire de chimie des polymères, Département de Chimie, Faculté des Sciences, Université d’Oran, BP 1524 El’Menouer Oran 31000, Algeria

Received: 3 Oct 2013; Revised: 28 Feb 2014; Accepted: 1 Mar 2014; Available online: 12 Mar 2014; Published: 30 Apr 2014.
Editor(s): Istadi Istadi
Open Access Copyright (c) 2014 by Authors, Published by BCREC Group
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
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Abstract
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 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)
Keywords: Maghnite-H+, Montmorillonite; ε-Caprolactam; Ring opening polymerization

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Section: Original Research Articles
Language : EN
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