DOI: https://doi.org/10.9767/bcrec.7.1.1211.43-48

Copolymerization of ε-caprolactone with Epichlorohydrin by a Green Catalyst, Maghnite

Laboratoire de Chimie des Polymères, Département de Chimie, Faculté des Sciences, Université d'Oran Es-Sènia BP N° 1524 El M'Naouar, 31000 Oran, Algeria

Received: 24 Sep 2011; Revised: 12 Dec 2011; Accepted: 9 Jan 2012; Published: 20 Jun 2012.
Editor(s): Istadi Istadi
Open Access Copyright (c) 2012 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
Most of the cationic initiators used in the synthesis of copolymers are expensive. They may be poisoned by products of the reaction or impurities present in the monomer feed, and contain heavy metals, such as chromium, mercury, antimony, etc., that presents environmental disposal problems for the user. Maghnite is a montmorillonite sheet silicate clay that is exchanged with protons to produce Maghnite-H+ (Mag-H+). This non-toxic and cheaper cationic catalyst was used for the copolymerization of ε-caprolactone (CL) with epichlorohydrin (ECH). The effects of the amounts of Mag-H+ and the temperature on the synthesis of poly (ε-caprolactone-co-epichlorohydrin) were studied. Increasing Maghnite-H+ proportion and temperature produced the increase in copolymerization yield. The copolymer obtained was characterized by 1H-NMR and IR spectroscopy. © 2012 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; Montmorillonite; Epichlorohydrin; epsilon-caprolacton; Ring opening polymerization

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Section: Original Research Articles
Language : EN
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