| 摘要 |
FIELD: organic chemistry, polymers, chemical technology. ^ SUBSTANCE: invention relates to a method for preparing polyamide that can be used as a structural material. Polyamide is prepared by co-polymerization reaction of epsilon-caprolactam and 1,6-hexamethylene diisocyanate in the mass ratio = (95-90):(5-10) in the presence of catalyst and an activating agent. As catalyst method involves using epsilon-caprolactam Li-salt and 2,4-toluylene diisocyanate as an activating agent. The process is carried out at temperature (180 ± 5)°C up to depletion of lactam cycles followed by heating the reaction mass for 2 h. Invention provides preparing polyamides with enhanced values of destroying stress (breaking point) and provides expanding assortment of methods providing preparing polyamides with different physical-mechanical properties also. ^ EFFECT: improved preparing method. ^ 2 tbl, 4 ex
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