García Arroyo, PalomaArrieta, MarinaGarcía-García, DanielCuervo Rodríguez, María RocíoFombuena, VicentMancheño, MaríaSegura Castedo, José Luis2024-02-282024-02-282020P. García-Arroyo, M. P. Arrieta, D. García-García, R. Cuervo-Rodríguez, V. Fombuena, M. J. Mancheño, J.L. Segura. Plasticized poly(lactic acid) reinforce with antioxidant covalent organic frameworks (COFs) as novel nanofillers designed for non-migrating active packaging applications. Polymer. 2020 Apr 12; 196 :122466-1224760032-386110.1016/j.polymer.2020.122466https://hdl.handle.net/20.500.14352/101816A 2D Covalent Organic Framework (named [HC≡C]0.5-TPB-DMTP-COF) was synthesized and post synthetically functionalized with dopamine via Copper-catalyzed azide–alkyne cycloaddition (CuAAC) reaction (COFDOPA) to obtain 2D nanoparticles with antioxidant activity. COFDOPA nanoparticles were exfoliated into nanosheets (COFDOPA-e) and incorporated into plasticized poly(lactic acid) (PLA) matrix with 15 wt% of acetyl trybutyl citrate (ATBC) to develop non-migratory sustainable packaging. The effect of COFDOPA and exfoliated COFDOPA-e (in 0.5, 1 and 3 wt%) on the structural, thermal and mechanical properties of PLA-ATBC was studied. The bionanocomposites loaded with low amounts of COFDOPA-e (0.5 wt% and 1 wt%) resulted optically transparent and showed good interfacial adhesion, increased crystallinity, thermal and mechanical performance. Moreover, the overall migration level assayed in a fatty food simulant was below the migration limits required for food packaging materials and showed effective antioxidant activity. Thus, these bionanocomposites show great potential as non-migration antioxidant materials with interest in the sustainable food packaging field.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/journal articlehttps://doi.org/10.1016/j.polymer.2020.122466http://www.elsevier.com/locate/polymerrestricted access547Poly(lactic acid)Covalent organic frameworksNon-migration antioxidant activityQuímica orgánica (Química)2306 Química Orgánica2304 Química Macromolecular