Bio‐renewable polymers based on lignin‐derived phenol monomers: Synthesis, applications, and perspectives

Abstract In recent decades, the continuous depletion of fossil fuels and increasingly serious environmental issue have aroused wide attention on development biopolymers based renewable biomass. Lignin is second most abundant organic bio‐based macromolecule to cellulose, it can be widely found in plants. Furthermore, various phenol derivatives obtained by their depolymerization processes. The bio‐renewable polymeric materials originating from lignin‐derivative monomers, such as vanillin, syringaldehyde, eugenol, vanillyl alcohol, vanillic acid, ferulic will not only valorize bio‐sourced but also effectively reduce petroleum resource consumption mitigate pollution. Therefore, an updated overview synthesis processes these polymers developed past decade, which includes both thermosets thermoplastics epoxy, phenolic, polyimine, polybenzoxazine, polyurethane, polyesters, are elucidated. addition, applications composites flame‐retarded materials, degradable reprocessable dielectric optoelectronic well smart responsive intensively discussed. line with gradual technologies, we believe that lignin turn into one promising considered for preparation high‐performance functional polymer materials.