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ZoP Comparative study of the influence of the macroactivator on the physicochemical properties of biodegradable copolyester-amides

autorzy: Marijonas Pranskevicius, Virgilijus Bikulcius, Liucijus Ginkus, Vincentas Jancauskas

We present the synthesis by anionic polymerization and our study on the physicochemical properties of biodegradable polyester amides (PEAs) consisting of poly (ε-caprolactam) (PCLA) and aliphatic polyester oligomers used as macroactivators (MA). The studied copolymers successfully combine the high mechanical properties of polyamides and the tendency to biodegradability of polyesters. The content and molecular weight of MA in the obtained copolymers varies (550, 1250 and 2000 g.mol-1) in order to clarify the influence of the macroactivator on some physicochemical parameters such as density, compactness and molar volume. The results obtained for copolyesters with the same composition but with different percentages of copolymers were compared and the results were analyzed in order to clarify the dependence of the properties on the composition.