The Circular Economy Paradigm: Modification of Bagasse-Derived Lignin as a Precursor to Sustainable Hydrogel Production

There have been many efforts to valorise lignin produce bio-based chemicals and advanced materials. In this study, alkaline delignification was initially employed recover from the rind, pulp, whole bagasse fractions of Moroccan sugarcane. The were subsequently modified via silanization acetylation reactions. raw then characterised assess changes in their physicochemical properties Fourier transform infrared spectroscopy (FTIR), solubility thermogravimetric assessment, with both salinization modification shown enhance polar non-polar solvents. Preliminary investigations into suitability employing hydrogel preparation also undertaken. preliminary hydrogels developed using heating freeze-thawing methods, while polyvinyl alcohol (PVA) epichlorohydrin (ECH) used as matrix crosslinking agents, respectively. rheological analysis, scanning electron microscopy, thermal analysis characterize different lignin–PVA hydrogels. study showed that swelling behaviour mainly influenced by nature (i.e., or raw), morphology surfaces varied depending on methods. based silanized PVA had superior mechanical performance capacity compared acetylated