| Abstract: | Conclusions The possibility of using diethylenetriamine which has been ethoxylated to various degrees to give antistatic properties to PCA has been discussed; the antistatic effect is expressed most strongly in the case of DETA 60.It has been found that the antistatics studied exert a regulating action on the degree of polymerization of the  -caprolactam, displayed in a decrease in the molecular weight of the PCA and an increase in the LMC content of the polymer. This brought about by the fact that the products examined contain, even though in slight amounts, free amino groups. DETA 100 exerts the weakest action.Under otherwise equal conditions in PCA synthesis, the introduction of DETA increase the rate of polymerization in the initial stage of the process.In view of the effects described, it is advisable, in preparing PCA fibres, to use products which contain 60 to 80 moles of ethylene oxide.Bulgaria. Translated from Khimicheskie Volokna, No. 1, pp. 42–44, January–February, 1984. |
