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

International Journal of Molecular Sciences

卷:4

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

DOI  :  10.3390/i4110572

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown