Abstract
Using aminolysis of caprolactam by diethylenetriamine, it is shown that the rate constant of this reaction is almost independent of the basicity of the aliphatic amine, but it decreases significantly in going from a melt of a mixture of amine and caprolactam with an almost equimolar ratio of components to dilute solutions of amine in caprolactam or polycaproamide melt. The Monte Carlo calculations suggest that no less than a three-fold molar excess of caprolactam is required for exhaustive conversion of the triamine into oligoamide triamine, and the products formed will be a set of molecules of different structure with a relatively narrow molecular-weight distribution.
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Mizerovskii, L.N., Karaseva, S.N., Silant'eva, V.G. et al. Oligomerization of Caprolactam with Aminolysis Reactions. Fibre Chemistry 35, 98–104 (2003). https://doi.org/10.1023/A:1024882127282
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DOI: https://doi.org/10.1023/A:1024882127282