ArticleLangmuir : the ACS journal of surfaces and colloids2026
Exploring Lignin Conformation in Organic and Deep Eutectic Solvents Using Small-Angle Neutron Scattering.
Article in Langmuir : the ACS journal of surfaces and colloids, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Lignin, a structurally intricate and heterogeneous phenolic biopolymer, holds considerable promise as a sustainable alternative to petrochemical-derived materials across diverse applications in the energy and materials sectors. However, precise lignin molecular weight and structure determination remains challenging due to its intrinsic tendency to aggregate in solution and the absence of chemically analogous polymer standards for chromatographic techniques. By employing small-angle neutron scattering, this study aims at precise measurement of lignin's polymeric conformation, aggregation behavior, and radius of gyration in organic gel permeation chromatography/NMR solvent, tetrahydrofuran (THF), and in an emerging class of solvent systems known as deep eutectic solvents (DES). These "designer" solvents, formed from tailored hydrogen bond donors and acceptors, are gaining importance for lignin extraction from biomass and analytical characterization. However, their influence on lignin conformation in solutions remains unexplored. Our study reveals that both organosolv and Indulin AT kraft lignin in THF exhibit loosely associated polymeric conformations. Upon D
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