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Towards lignin derived thermoplastic polymers.

Mahesh Parit1, Zhihua Jiang1

  • 1Department of Chemical Engineering, Auburn University, 212 Ross Hall, Auburn, AL 36849, United States of America; Alabama Center for Paper & Bioresource Engineering, Auburn University, 356 Ross Hall, Auburn, AL 36849, United States of America.

International Journal of Biological Macromolecules
|October 16, 2020
PubMed
Summary
This summary is machine-generated.

Lignin, an abundant bio-material, shows promise as a component in thermoplastic polymers. This review explores modifying lignin and its integration into copolymers and blends for value-added applications.

Keywords:
BlendsCopolymersLigninMechanical propertiesThermal propertiesThermoplastic polymers

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Area of Science:

  • Polymer Science
  • Biomaterials Engineering
  • Sustainable Chemistry

Background:

  • Lignin is the second most abundant terrestrial biopolymer, primarily a byproduct of the pulp and paper industry and biorefineries.
  • Despite its abundance, large-scale valorization of lignin remains a challenge, hindering its economic potential.
  • There is a growing demand for renewable and biodegradable materials in commodity polymers, creating an opportunity for lignin utilization.

Purpose of the Study:

  • To provide a comprehensive review of lignin-based thermoplastic polymers.
  • To explore the structural modifications of lignin for enhanced compatibility and processability in polymeric systems.
  • To discuss copolymerization and blending strategies for incorporating lignin into thermoplastic materials.

Main Methods:

  • Review of literature on lignin modification techniques to control homogeneity, reactivity, processability, and compatibility.
  • Analysis of various copolymerization methodologies for lignin with thermoplastic monomers.
  • Examination of lignin-based thermoplastic blends, including necessary chemical modifications for improved compatibility.

Main Results:

  • Lignin modification is crucial for its successful integration into thermoplastic polymers, influencing copolymer synthesis and blend processing.
  • Various copolymerization and blending strategies exist for incorporating lignin, often requiring chemical modifications for optimal compatibility.
  • Lignin-based thermoplastic polymers offer a promising avenue for value-added utilization of this abundant biomass resource.

Conclusions:

  • Structural modification of lignin is key to its effective use as a functional and structural component in thermoplastic polymers.
  • Copolymerization and blending with thermoplastic polymers, coupled with appropriate modifications, can lead to novel lignin-based materials.
  • Further research and development are needed to achieve commercial viability for lignin-based thermoplastic polymers, with promising applications on the horizon.