2,5-diformylfuran (DFF) is a promising green platform chemical obtainable by selective oxidation of 5-(hydroxymethyl)furfural (HMF). In this work, high-purity DFF was synthesized from HMF and compared to formaldehyde (F) in terms suitability for polymerization aqueous solution with various phenolic model substances that may be depolymerization lignin. Resorcinol, catechol, phloroglucinol formed...

The demand for high-performance materials is increasing, and most of these are petrol based. Therefore, the development highly efficient selective catalytic methods that allow access to industrially relevant polymer building blocks from complex biomass depolymerization mixtures essential. Here, we report on a robust strategy obtain 4,4?-methylenebiscyclohexanamine (MBCA) lignin oxidation its us...

Recalcitrance of lignocellulosic feedstocks to depolymerization is a significant barrier for bioenergy production approaches that require conversion monomeric carbohydrates renewable energy sources. This study assesses how low-cost modifications in the supply chain can be transformed into targeted pretreatments context entire chain. research aims overcome physiochemical barriers corn stover nec...

Abstract In recent decades, the continuous depletion of fossil fuels and increasingly serious environmental issue have aroused wide attention on development biopolymers based renewable biomass. Lignin is second most abundant organic bio‐based macromolecule to cellulose, it can be widely found in plants. Furthermore, various phenol derivatives obtained by their depolymerization processes. The bi...

Abstract Zirconia-supported vanadium–copper catalysts (VCu x : y Zr) were used for the oxidative depolymerization of softwood LignoBoost Kraft lignin (LB). Various VCu Zr prepared ( = 0:1, 1:4, 1:2, 3:4, 1:1, and 1:0) by incipient wetness impregnation, reactions performed in alkaline water at 150 °C under an O 2 pressure 5 bar 10 min. 1 H– 13 C HSQC NMR spectroscopy was product identification q...

Microwave-assisted depolymerization of black-liquor lignin in formic acid was studied, concentrating on the yield of liquid fractions as bio-oil 1 (mainly aromatic monomers) and bio-oil 2 (mainly aromatic oligomers) and the distribution of the specific compositions. Bio-oil 1 (9.69%) and bio-oil 2 (54.39%) achieved their maximum yields under 160 °C with the reaction time of 30 min. The chemical...