Cationic polymerization of glycidol |
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Authors: | T. V. Grinevich N. G. Taganov M. L. Pridatchenko A. A. Berlin |
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Affiliation: | 1.Semenov Institute of Chemical Physics,Russian Academy of Sciences,Moscow,Russia;2.Talrose Institute for Energy Problems of Chemical Physics,Russian Academy of Sciences,Moscow,Russia |
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Abstract: | Polymerization of glycidyl alcohol induced by boron trifluoride tetrahydrofuran complex (BF3 ? THF) in ethylene glycol dimethyl ether (DME) and in the presence of BF3–water or BF3–glycerol catalyst system was studied. Under any of the conditions employed, the reaction gave water-soluble oligoether with polydispersity of ~1.1. It was shown by mass spectrometry that during polymerization in DME, DME is incorporated into the polymer and glycidol polymerization gives the alkyl-ether. According to calculations for glycidol polymerization in the presence of hydroxy compounds, the calculated number-average degrees of polymerization were higher than the experimental values both in the presence of water and with glycerol; this may be attributable to initiation of new molecules on the hydroxy group of the unreacted monomer. |
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