biostudies-literatureUnknown15(1)Zhu XThe global "carbon emission peak" and "carbon neutrality" strategic goals promote us to replace current petroleum-based resin products with biomass-based resins. The use of technical lignins and hemicellulose-derived furfuryl alcohol in the production of biomass-based resins are among the most promising ways. Deep understanding of the resulting resin structure is a prerequisite for the optimization of biomass-based resins. Herein, a semiquantitative 2D HSQC NMR technique supplemented by the quantitative 31P NMR and methoxyl group wet chemistry analysis were employed for the structural elucidation of softwood kraft lignin-based furfuryl alcohol resin (LFA). The LFA was fractionated into water-insoluble (LFA-I) and soluble (LFA-S) parts. The analysis of methoxyl groups showed that the amountMaterials (Basel, Switzerland)350https://www.ebi.ac.uk/biostudies/studies/S-EPMC8746157biostudies-literatureStructural Analysis of Lignin-Based Furan Resin.PMC8746157Balakshin MBruijnaers BZhu XLourencon TVfalseStructural Analysis of Lignin-Based Furan Resin.The global "carbon emission peak" and "carbon neutrality" strategic goals promote us to replace current petroleum-based resin products with biomass-based resins. The use of technical lignins and hemicellulose-derived furfuryl alcohol in the production of biomass-based resins are among the most promising ways. Deep understanding of the resulting resin structure is a prerequisite for the optimization of biomass-based resins. Herein, a semiquantitative 2D HSQC NMR technique supplemented by the quantitative 31P NMR and methoxyl group wet chemistry analysis were employed for the structural elucidation of softwood kraft lignin-based furfuryl alcohol resin (LFA). The LFA was fractionated into water-insoluble (LFA-I) and soluble (LFA-S) parts. The analysis of methoxyl groups showed that the amount2022-01-01T00:00:00Z2022 Jan2025-04-22T08:25:10.549Z2022-02-11T15:18:55.007ZS-EPMC87461573500949610.3390/ma15010350