Abstract
The polymerization of methyl methacrylate by alkali metal alkoxides was carried out in aprotic dipolar solvents such as hexamethylphosphoramide, dimethylsulfoxide, and dimethylacetamide. The polymerization was drastically promoted by these solvents, even by the presence of small quantities of them. Tetramethylethylenediamine and ethereal solvents also promoted the reaction, although these solvents were less effective than the aprotic dipolar type. Such an effect of the solvent was explained in terms of the donor property and the dielectric constant of the solvent. Alkali metal salts of 2-substituted ethanols such as 2-methoxyethanol and 2-dimethyl-aminoethanol were effective as the initiator. The structure of the polymer was discussed with regard to the property of the propagating active end.
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Tomoi, M., Sekiya, K. & Kakiuchi, H. Anionic Polymerization of Methyl Methacrylate by Alkali Metal Alkoxide. Polym J 6, 438–444 (1974). https://doi.org/10.1295/polymj.6.438
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DOI: https://doi.org/10.1295/polymj.6.438
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