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Lignin-Based Functional Materials

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Smart and Functional Polymers".

Deadline for manuscript submissions: 25 June 2025 | Viewed by 419

Special Issue Editor


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Guest Editor
Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
Interests: lignin; supramolecular self-assembly; nanoparticles; atomic force microscopy; biomass materials

Special Issue Information

Dear Colleagues,
As the demand for sustainable and green manufacturing continues to grow in the functional materials sector, manufacturers are exploring renewable, biocompatible, and biodegradable resources as an alternative to petrochemical resources for the preparation of advanced materials. Lignin is a type of important and sustainable plant biomass resource, which possesses many remarkable features such as ultraviolet-shielding properties, photothermal conversion capability, antioxidant properties, and fluorescence performance. Recent advancements have demonstrated the promising potential of lignin-based functional materials in the energy, optical, biological, architecture, and cosmetics fields.

This Special Issue focuses on the novel achievements in the fundamental science, manufacturing technology, structural design and regulation, characterization, and application of lignin-based functional materials.  Research studies in which sufficiently significant scientific innovations about lignin-based materials are involved are encouraged to submit their work, in the form of a review, research article, or communication, for publication in this Special Issue of Polymers.

Dr. Jingyu Wang
Guest Editor

Manuscript Submission Information

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Keywords

  • lignin
  • functional materials
  • nanoparticles
  • polymers

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Published Papers (1 paper)

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Research

19 pages, 4609 KiB  
Article
Evaluation of Acidic Deep Eutectic Solvents Treatment on Enzymatic Hydrolysis Lignins: Structural Analysis and Antioxidant Activity
by Qiaorun Ma, Xun Meng, Hongtao Shi, Lian Chen, Jiangyao Han, Lifen Li and Liping Yu
Polymers 2025, 17(8), 1006; https://doi.org/10.3390/polym17081006 - 8 Apr 2025
Viewed by 303
Abstract
The high-value utilization of enzymatic hydrolysis lignin (EHL) is essential for promoting the development of the biorefinery industry. This study investigated the enhancement of the antioxidant activity and ultraviolet (UV) absorption capacity of EHL through treatment with choline chloride (ChCl)-based acidic deep eutectic [...] Read more.
The high-value utilization of enzymatic hydrolysis lignin (EHL) is essential for promoting the development of the biorefinery industry. This study investigated the enhancement of the antioxidant activity and ultraviolet (UV) absorption capacity of EHL through treatment with choline chloride (ChCl)-based acidic deep eutectic solvents (DESs). The yield, chemical structure, UV absorption properties, antioxidant activity, and thermal stability of the degraded and regenerated enzymatic hydrolysis lignin (DEHL) were analyzed. The results indicated that treatment with DESs effectively preserved the aromatic structure of EHL. Compared to untreated EHL, DEHL exhibited an increased O/C atomic ratio, a decreased UV transmittance, a significant reduction in weight-average molecular weight (Mw), and a notable increase in phenolic hydroxyl (ArOH) content. Notably, DEHL treated with ChCl–p-toluenesulfonic acid had the lowest Mw (1586 g/mol) and the highest ArOH content. Except for the ChCl–malic acid and ChCl–acetic acid systems, all the other five DES treatments enhanced the antioxidant activity of DEHL to varying degrees. Among them, DEHL treated with ChCl–p-toluenesulfonic acid exhibited the highest antioxidant activity, with an IC50 DPPH value of 262.87 μg/mL. Full article
(This article belongs to the Special Issue Lignin-Based Functional Materials)
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