The Cationic Polymerization of Methallyl Vinyl Ether
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概要
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The polymerization of methallyl vinyl ether was carried out in toluene by means of BF<SUB>3</SUB>·OEt<SUB>2</SUB>. The reaction proceeded through the vinyl double bond, giving a polymer containing one methallyl double bond per monomeric unit. The polymer obtained below −78°C was a white powder and had an isotactic configuration. The molecular weight of the polymer decreased with an increase in the polymerization temperature, and the polymer obtained at 0°C was a viscous liquid. In <I>n</I>-heptane, the yields of the polymer decreased and a part of the polymer obtained was insoluble in usual organic solvents, probably because of the cross-linking which occurred during the polymerization reaction. In <I>n</I>-heptane-toluene mixtures, the yields were much higher than those in toluene or <I>n</I>-heptane alone. The NMR spectra of the polymer were measured in CCl<SUB>4</SUB>, benzene, pyridine, and quinoline at various temperatures in order to investigate the polymer-solvent interaction; the π-complex formation between the monomeric unit of the polymer and the aromatic solvent molecule was suggested.
- 公益社団法人 日本化学会の論文
著者
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Hatada Koichi
Department Of Chemistry Faculty Of Engineering Science Osaka University
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Yuki Heimei
Department of Applied Chemistry, Faculty of Engineering, Osaka University
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Nagata Kazuhiko
Department of Chemistry, Faculty of Engineering Science, Osaka University
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Emura Tomoyuki
Department of Chemistry, Faculty of Engineering Science, Osaka University
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