The excess solvolysis reagent – diethylene glycol – was removed from liquefied poplar wood by rotary evaporation. Afterwards, cured films were prepared by self-crosslinking at an elevated temperature. The research represents a novel approach in the field of liquefied lignocellulosics. Up to our best knowledge, for the first time, the cured surface films have been prepared from liquefied wood without added curing agents. The results open a new chapter in more effective usage of liquefied biomass.
Original solution of incorporation of the liquefied poplar wood, without a major part of the excessive reagent – diethylene glycol, into a waterborne two pack coating systems is represented in the article. It was stated that, with the exception of resistance against water, properties of the new two-component waterborne polyurethane coatings on the basis of liquefied wood were comparable to those of a commercially available polyurethane coating made of non-renewable resources.