Wanmolee, Wanwitoo published the artcileOne step liquefaction of hardwood lignin to oligomers soluble in polymerizable solvents, Application In Synthesis of 539-88-8, the main research area is liquefaction hardwood lignin oligomer soluble polymerizable solvent solubility.
Today tech. lignins produced from different industrial processes are underutilized because they possess recalcitrant C-C bonds and reduced proportion of ether bonds, making it difficult to produce building block compounds in high yields. Current methods being developed to process tech. lignin and improve its usefulness involve multiple steps and the use of toxic chems. We report an innovative cleave and couple one step catalytic process on eucalyptus lignin (EUL) to form unique aromatics oligomers with aliphatic side chains using KOH/HCOOH mixture with methanol as the solvent. Under optimum condition, 71 wt% of predominantly dimers and oligomers are formed which are readily soluble in polymerizable solvents such as Me methacrylate. In this one pot process, the KOH not only acts as the catalyst but ensures complete solubilization of EUL, allowing easier cleavage of bonds to form phenolic monomers and quinone groups (which undergo ring opening) followed by repolymn. to form oligomers. The study has opened pathways toward sustainable catalytic conversion of tech. lignin to reactive macromol. building blocks to produce soft nanomaterials.
Industrial Crops and Products published new progress about Depolymerization. 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, Application In Synthesis of 539-88-8.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics