Photo-Induced Synthesis of Bioplastics from Xylan

Bioplastics derived from hemicellulose exhibit marked potential to substitute petroleum-based plastics due to their sustainability and biodegradability. However, developing bioplastics that combine facile manufacturing processes, excellent mechanical properties, and a low carbon footprint remains challenging. Herein, we present a strategy for fabricating high-performance bioplastics (XAGP) by crosslinking xylan molecular chains via photo-induced free-radical polymerization. The XAGP exhibits high light transmittance (95%), exceptional mechanical toughness (26 MJ/m³) and mechanical strength (84 MPa), outstanding thermal stability, water-assisted processability, rapid biodegradability (10 days in nature soil), hypotoxicity in aquatic environments, and good biocompatibility (cell viability above 98%). Furthermore, cost and life cycle assessment results demonstrate that XAGP is a more sustainable alternative to commercial biodegradable plastics, offering greater cost-effectiveness and a reduced carbon dioxide emission. This work establishes a promising route for transforming pulp waste into degradable, high-performance bioplastics, providing an effective solution to both waste disposal and plastic pollution.