Summary
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1.
It was established that the first stages of polycondensation of two salts of hexamethylenediamine involve formation of polyamides of the salt of the more active adipic acid; only in the later stages of the reaction is an equilibrium established at which the compositions of the original reaction mixture and of the polyamide formed are identical.
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2.
It was shown that in processes of polycondensation the composition of the polymers formed in the final stages of the process is governed by the ratio between the starting substances and not by the kinetics of the individual stages of the process.
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Literature cited
V. M. Kharitonov, T. M. Frunze, and V. V. Korshak, Bull. Acad. Sci. USSR, Div. Chem. Sci. 1957, 1000.
V. M. Kharitonov, T. M. Frunze, and V. V. Korshak, Bull. Acad. Sci. USSR, Div. Chem. Sci. 1957, 1134.
Ya. E. Bernadskaya and G. N. Kudryavtsev, Collection “Artificial Fiber,” No. 3 (State Light Industry Press, 1952), p. 88.
H. Klare, Technologie and Chemie der Synthetischen Fasern aus Polyamiden, Verlag Technik, Berlin 1954, p. 21, 25.
V. V. Korshak and T. M. Frunze, Proc. Acad. Sci. USSR 97, 675 (1954).
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Kharitonov, V.M., Frunze, T.M. & Korshak, V.V. Heterochain polyamides Communication 4. Investigation of kinetics of formation of mixed polyamides from salts of hexamethylenediamine. Russ Chem Bull 6, 1165–1167 (1957). https://doi.org/10.1007/BF01169402
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DOI: https://doi.org/10.1007/BF01169402