ArticleBiomacromolecules2024
Oxidative Carboxylation of Lignin: Exploring Reactivity of Different Lignin Types.
Article in Biomacromolecules, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Article
- Recent advances in lignin-based carbon materials for pollutant removal and oil-water separation: a review.RSC advances · 2026Review
- Silylated Softwood and Hardwood Lignin: Impact on Thermomechanical and Interfacial Properties of PLA Biocomposites.Biomacromolecules · 2025Article
- A comprehensive review of unlocking the potential of lignin-derived biomaterials: from lignin structure to biomedical application.Journal of nanobiotechnology · 2025Review
- Structure-Property Relationships of Lignin-Derived Semiaromatic Poly(ether ester)s.Macromolecules · 2025Article
- Acidic Oxidative Depolymerization Towards Functionalized Low-Molecular-Weight Lignin and High-Value-Added Aliphatic Monomers: Operating Conditions, Scale-Up, and Crosslinking.International journal of molecular sciences · 2025Article
- Lignin: An Adaptable Biodegradable Polymer Used in Different Formulation Processes.Pharmaceuticals (Basel, Switzerland) · 2024Review
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Authors and funding
2 authors.
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Abstract
The increased interest in the utilization of lignin in biobased applications is evident from the rise in lignin valorization studies. The present study explores the responsiveness of lignin toward oxidative valorization using acetic acid and hydrogen peroxide. The pristine lignins and their oxidized equivalents were analyzed comprehensively using NMR and SEC. The study revealed ring opening of phenolic rings yielding muconic acid- and ester-end groups and side-chain oxidations of the benzylic hydroxyls. Syringyl units were more responsive to these reactions than guaiacyl units. The high selectivity of the reaction yielded oligomeric oxidation products with a narrower dispersity than pristine lignins. Mild alkaline hydrolysis of methyl esters enhanced the carboxylic acid content of oxidized lignin, presenting the potential to adjust the carboxylic acid content of lignin. While oxidation reactions in lignin valorization are well documented, this study showed the feasibility of employing optimized oxidation conditions to engineer tailored lignin-based material precursors.
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