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Lignin Upconversion by Functionalization and Network Formation
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DOI：10.1002/anie.202313945.png)
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Abstract
En 中文
Lignin, a complex and abundant biopolymer derived from plant cell walls, has emerged as a promising feedstock for sustainable material development. Due to the high abundance of phenylpropanoid units, aromatic rings, and hydroxyl groups, lignin is an ideal candidate for being explored in various material applications. Therefore, the demand on lignin valorization for development of value-added products is significantly increasing. This mini-review provides an overview of lignin upconversion, focusing on its functionalization through chemical and enzymatic routes, and its application in lignin-based polymer resins, hydrogels, and nanomaterials. The functionalization of lignin molecules with various chemical groups offers tailored properties and increased compatibility with other materials, expanding its potential applications. Additionally, the formation of lignin-based networks, either through cross-linking or blending with polymers, generates novel materials with improved mechanical, thermal, and barrier properties. However, challenges remain in optimizing functionalization techniques, preserving the innate complexity of lignin, and achieving scalability for industrial implementation. As lignin's potential continues to be unlocked, it is poised to contribute significantly to the shift towards more eco-friendly and resource-efficient industries. This minireview provides insights into up-conversion of lignin, which is a major byproduct of paper and pulp industries and has highly polyphenolic structure. Lignin can be functionalized through chemical and enzymatic routes to develop value-added chemicals for industries. Further, cross-linking strategies lead to the development of functional materials such as polymeric resins, bioplastics, hydrogels, nanocarriers and carbon fibers.image
Keywords:
Bioplastics
Hydrogels
Lignin Functionalization
Nanocarriers
Polymer Resins
Journal
IF:
16.9
Papers:
5.7W
Citations:
53.0W
Organization
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