A green approach to toughening poly(vinyl alcohol) soft composites using renewably processed and fractionated lignin.
This study investigates the fabrication and mechanical characterization of poly(vinyl alcohol) (PVA)-lignin biocomposite hydrogels prepared using unfractionated lignin and its low- and high-molecular-weight (LMW and HMW) fractions. Hydrogels were fabricated from 5 wt % and 10 wt % PVA-DMSO precursor solutions containin...