High‐molecular‐weight, film‐ and fiber‐forming polysuccinamides were synthesized by polycondensation of active diesters of succinic acid with hexamethylenediamine or dodecamethylenediamine under mild conditions. By kinetic investigations it was established that the formation of high‐molecular‐weight polysuccinamides is connected with a low rate of chain‐terminating formation of a cyclic imide and its nearly complete suppression by chain‐growth aminolysis reaction.
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Katsarava et al. (1986) studied this question.
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