Krastev P.Mateva R.2024-07-162024-07-162024-07-162024-07-162014-01-011314-79781314-7471SCOPUS_ID:84920700871https://rlib.uctm.edu/handle/123456789/1079Polyamide-6 /Polypropylene glycol (PPG) copolymers were synthesized via anionic polymerization of e-caprolactam in the presence of inorganic additives - graphite and boron carbide using isophorone diisocyanate end functionalized PPG prepared in-situ as a macroactivator. Sodium caprolactam was used as an initiator. The influence of the graphite and boron carbide fillers on the degree of conversion was investigated. The copolymers obtained were characterized by 1 H NMR and FTIR spectroscopies. The charpy impact strength of the composites was evaluated.enArticle