Conclusions
The consumption of acetic anhydride and formation of by-product sodium acetate in the technological process of THF polymerization can be reduced 25–35% by somewhat increasing the HC104 concentration and the reaction temperature.
A maximum temperature of 20°C and limiting allowable HC104 concentrations at various temperatures have been established. Above the indicated values of these parameters, the quality of the object polymers is significantly impaired. This fact is explained by the contribution of a side-reaction involving HC104 as an oxidizing agent.
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Translated from Khimicheskie Volokna, No. 5, pp. 27–29, September–October, 1983.
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Samsonova, T.I., Mikhailov, G.D., Bagrov, B.M. et al. Polymerization of tetrahydrofuran in the presence of acetic anhydride and perchloric acid. Fibre Chem 15, 349–353 (1984). https://doi.org/10.1007/BF00548131
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DOI: https://doi.org/10.1007/BF00548131