Lignins are now considered as the main aromatic renewable resource. They represent an
excellent alternative feedstock for the elaboration of chemicals and polymers. Lignin is a …

Next to cellulose, lignin is the second most abundant biopolymer, and the main source of
aromatic structures on earth. It is a phenolic macromolecule, with a complex structure which …

Functionalization of lignin was carried out with 4, 4′-diphenyl methane diisocyante (MDI) at
90° C for 60 min. Formation of the resulting reaction products was confirmed with the help of …

Lignin is the main natural aromatic polymer and consists of about a quarter of lignocellulosic
biomass. That is why products obtained from lignin are very attractive research topics, but it …

Steam explosion pretreatment was proposed to eliminate carbohydrates in the alkali lignin
liquor isolated from corn stalk and the obtained lignin liquor was concentrated and …

Thermosets from renewable sources have been a research focus for the last few decades.
Bio-based thermoset resins are considered important candidates for sustainable …

A new approach to increase the reactivity of lignin by thiol-mediated demethylation was
investigated in this study. Demethylated lignin was characterized by the changes in its …

The conversion of lignin into value-added products is traditionally hampered by its stochastic
structure and its complex reactivity. The allylation reaction and the aromatic Claisen …

Modified ammonium lignosulfonate (MAL) and polyethylenimine (PEI) were combined and
used as a binder in the manufacture of a woodbased green composite. The effects of hot …

With the depletion of fossil resources, tannin extracts can be a natural alternative to some
synthetic products. Hydrolysable chestnut tannin extracts have been used to partially …