Synthesis and Application of New Lignin-Based Polymers and Composites
A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".
Deadline for manuscript submissions: closed (21 February 2023) | Viewed by 26300
Special Issue Editor
Interests: chemistry and technology of lignocellulosics; lignin chemistry; lignin-based polymers and composites; hybrid materials; catalysis; paper materials; analytic tools for natural polymers
Special Issue Information
Dear Colleagues,
Lignin is an amorphous aromatic irregular biopolymer, second in natural occurrence only to cellulose. In addition to its important physiological functions in vascular plants (promoting tissue binding, rigidity, antiseptic, and hydrophobicity properties), lignin is a promising renewable organic resource, with an annual increase resulting from biosynthesis of more than 20 billion tons. In practice, lignin is available mainly as a byproduct of the wood processing industries, whose annual production exceeds 50 million tons. This issue is a major challenge for chemists in relation to the valorization of lignin.
Although most technical lignins are burned for energy, their great potential is recognized for producing chemicals and advanced polymeric materials. Currently, water-soluble lignins, especially lignosulfonates from sulfite pulping, are widely valued for different purposes. However, remarkable progress in the use of lignins from kraft pulping and chemical/biochemical deconstruction of wood instills confidence in its wide applicability in materials instead of burning. Lignin can be used in its polymeric form as (i) unmodified additive in polymeric formulations by blending, or as (ii) a macromonomer, with or without modification to bring new functionalities, in advanced polymers/copolymers or (iii) after depolymerization to produce chemicals suitable for organic synthesis or as a fuel.
In conventional applications, technical lignins are essentially limited to being used as unmodified additives to different polymer blends and composites, in construction materials (concrete, cement, breaks, asphalt, etc.), in the extractive (oil production and mining) and manufacturing (ceramic, leather-processing, paint and varnish, carbon black, etc.) industries, agriculture (fertilizers, auxiliary chemicals, remediation, etc.), and in medicine. The most recent trends point to high-performance advanced lignin-based materials obtained by targeted modification, controlled polymerization, and nanostructuring techniques.
This Special Issue encourages researchers to contribute with their recent works (original research articles and reviews) related to advances in lignin utilization in new polymeric formulations, composites, functional and nanostructured materials.
Prof. Dr. Dmitry V. Evtuguin
Guest Editor
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Keywords
- lignin
- chemical modification
- controlled polymerization
- nanostructuring
- resins
- adhesives
- adsorbents
- hybrid materials
- hydrogels
- sensors
- composite materials
- functional materials
- conductive composites
- delivery systems
- bioremediation
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