It has been found that the concentration dependences of the thermodynamic activity of water in aqueous-dimethylacetamide and aqueous-dimethylformamide solutions have breaks in the concentration regions of organic component of 40, 60, and 85% by wt.
A comparison of the data obtained with the structure of two types of fibres for which the investigated solutions are used as precipitants indicates a parallel course for the radical changes in structure of mixed solvents of definite compositions and of fibres which are obtained under precipitation conditions.
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Translated from Khimicheskie Volokna, No. 2, pp. 16–17, March–April, 1990.
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Iovleva, M.M., Konovalova, L.Y. Thermodynamic activity of some aqueous-organic solutions. Fibre Chem 22, 73–75 (1990). https://doi.org/10.1007/BF00555727
- Concentration Dependence
- Organic Component
- Radical Change