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Lignin: Dissolution, modification, and derived materials
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DOI：10.1016/j.ijbiomac.2025.142748.png)
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Abstract
En 中文
Global environmental issues and energy dilemmas have made renewable and sustainable technologies become on the cutting edge. Lignin, the most abundant non-petroleum polyhydroxy aromatic macromolecule, has been widely studied to convert to platform chemicals via violent cleavage. This makes good use of lignin, which can effectively remit environmental and energy problems. However, the self-contained three-dimensional structure was wasted in this process, and thus, the synthesis of lignin-based materials has become another important research direction. Meanwhile, the value-added utilization of technical lignin is still a problem at present. There are some limitations in taking advantage of lignin due to the different sources and isolation routes, resulting in poor solubility and compatibility in application. Technical lignins contain aliphatic hydroxyl, phenolic hydroxyl, methoxyl, and other oxygen-containing functional groups, which can be further chemically modified to adjust the technical lignins of physicochemical properties for forming available materials rather than just being used as fuel. Here, we summarized the development of technical lignins, including the following aspects: (1) the chemical structures of lignins, the critical factors that influenced the dissolution of lignin, which induced different dispersion states of lignin in the as-prepared materials; (2) the dissolution behavior and mechanism for lignins; (3) the potential chemical modification routes for lignin; and (4) preparation and properties of ligninbased hybrid and composite materials. This comprehensive review can provide valuable information on lignin dissolution, chemical modification, and further employment in the fabrication of materials.
Keywords:
Technical lignin
Dissolution
Chemical modification
Materials
Journal
IF:
8.5
Papers:
5.0W
Citations:
21.7W
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