Melro, ElodieDuarte, HugoEivazi, AlirezaCosta, CarolinaFaleiro, Maria LeonorRosa Da Costa, AnaAntunes, Filipe E.Valente, Artur J. M.Romano, AnabelaNorgren, MagnusMedronho, Bruno2024-02-192024-02-1920242637-6105http://hdl.handle.net/10400.1/20407Poly(butylene succinate) (PBS) has been drawing attention as a reliable biodegradable and sustainable alternative to synthetic petroleum-based polymers. In this study, PBS-lignin composites were developed using a recently extracted lignin (LA-lignin) from pine wood residues employing an innovative sustainable approach. These composites were systematically compared with PBS-based composites formed with commonly used technical lignins. The molecular weight of the lignins was evaluated, along with various structural and performance-related properties. The LA-lignin/PBS composites display a remarkably low water solubility (ca. < 2%), water uptake (ca. 100 degrees). Moreover, the rigidity and thermal stability of the LA-lignin-PBS composites were higher than those of the systems formed with technical lignins. Although all composites studied present remarkable antioxidant features, the novel LA-lignin-PBS systems stand out in terms of antiadhesion activity against both Gram-positive and Gram-negative bacteria. Overall, the systematic analysis performed in this work regarding the impact of various lignins on the formed PBS composites enables a better understanding of the essential structural and compositional lignin features for achieving biobased materials with superior properties.engBiocompositesBio-PBSPoly(butylene succinate)-lignin compositesWood residuesLevulinic acid-based solventjournal article10.1021/acsapm.3c02103