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  11. New Insight Into Industrial Lignin Intermolecular Force Heterogeneity Mitigation: Monodispersed Lignin Colloidal Sphere Synthesis And Full Biomass Photonic Material Preparation

New Insight into Industrial Lignin Intermolecular Force Heterogeneity Mitigation: Monodispersed Lignin Colloidal Sphere Synthesis and Full Biomass Photonic Material Preparation

Qiyu Liu1,2,3, Jiayue Lu1,2,3, Lili He1,2,3

  • 1Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.

Journal of Agricultural and Food Chemistry
|December 3, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

Researchers transformed industrial lignin into uniform lignin colloidal spheres (LCSs) by functionalizing hydroxyl groups. This method enhances control over size distribution, enabling precise tuning of advanced biomass photonic materials.

Area of Science:

  • Materials Science
  • Biomass Valorization
  • Colloidal Chemistry

Background:

  • Industrial lignin, a byproduct of pulping, is underutilized due to its inherent heterogeneity.
  • Lignin colloidal spheres (LCSs) offer potential for advanced biomass photonic materials due to biocompatibility.
  • Existing methods yield LCSs with broad size distributions, limiting their application.

Purpose of the Study:

  • To develop a method for producing monodispersed LCSs from industrial lignin.
  • To improve the size control of LCSs for advanced material applications.
  • To investigate the effect of functionalization on lignin properties and LCS characteristics.

Main Methods:

  • Selective functionalization of phenolic and aliphatic hydroxyl groups in industrial lignin to form ester groups.
Keywords:
heterogeneityligninmechanism studymonodispersed LCSs

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  • Synthesis of LCSs from functionalized lignin.
  • Characterization using simulation analysis and atomic force microscopy (AFM).

    • Main Results:

    • Functionalization significantly decreased the size distribution of LCSs, achieving a monodispersing degree.
    • Simulation revealed decreased lignin polarity and narrowed C-O linkage electron cloud distribution after functionalization.
    • AFM confirmed a reduced force distribution index (FDI) from 0.38 to 0.11, correlating with a lower LCS polymer dispersity index (PDI) from 0.182 to 0.05.

    Conclusions:

    • Selective functionalization is an effective strategy to overcome lignin heterogeneity and achieve monodispersed LCSs.
    • The developed method enables precise control over LCS particle size, crucial for tunable photonic materials.
    • Monodispersed LCSs are suitable for preparing advanced biomass photonic materials with adjustable optical properties.
    photonic material