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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 which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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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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