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

International Journal of Molecular Sciences

Ahmed Yahiaoui¹  Mohammed Belbachir² 

[1] Laboratoire de chimie des polymères, Département de Chimie, Faculté des Sciences, Université d’Oran, BP 1524 El’Menouer Oran 31000 Algérie. Fax: [phone], E-mail;Laboratoire de chimie des polymères, Département de Chimie, Faculté des Sciences, Université d’Oran, BP 1524 El’Menouer Oran 31000 Algérie. Fax: [phone], E-mail:

关键词: maghnite;    montmorillonite;    catalyst;    epoxides;    propylene oxide;    ring opening polymerization;   

DOI  :  10.3390/i4110572

来源: mdpi

【 摘 要 】

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.

【 授权许可】

Unknown   
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