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Int. J. Mol. Sci. 2003, 4(11), 572-585; doi:10.3390/i4110572
Article

Cationic Polymerization of 1,2-Epoxypropane by an Acid Exchanged Montmorillonite Clay in the Presence of Ethylene Glycol

, *  and
Laboratoire de chimie des polymères, Département de Chimie, Faculté des Sciences, Université d’Oran, BP 1524 El’Menouer Oran 31000 Algérie
* Author to whom correspondence should be addressed.
Received: 7 May 2003 / Accepted: 14 October 2003 / Published: 27 October 2003
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Abstract

The polymerization of propylene oxide (PO) catalysed by maghnite-H+ (mag-H+) in the presence of ethylene glycol was investigated. Mag-H+ is a montmorillonite silicate sheet clay was prepared through a straight forward proton exchange process. It was found that the cationic polymerization of PO was initiated by mag-H+ at 20 °C both in bulk and in solution. The effect of the amount of mag-H+ and solvent was studied. These results indicated the cationic nature of the polymerization A possible initiation pathway, via the transfer of protons from mag-H+ to the monomer, is proposed.
Keywords: maghnite; montmorillonite; catalyst; epoxides; propylene oxide; ring opening polymerization maghnite; montmorillonite; catalyst; epoxides; propylene oxide; ring opening polymerization
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Yahiaoui, A.; Belbachir, M.; Hachemaoui, A. Cationic Polymerization of 1,2-Epoxypropane by an Acid Exchanged Montmorillonite Clay in the Presence of Ethylene Glycol. Int. J. Mol. Sci. 2003, 4, 572-585.

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