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Polyols and Polyurethanes from the Liquefaction of Lignocellulosic Biomass
Author(s) -
Hu Shengjun,
Luo Xiaolan,
Li Yebo
Publication year - 2014
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201300760
Subject(s) - liquefaction , biomass (ecology) , raw material , lignocellulosic biomass , polyol , renewable resource , organic chemistry , pulp and paper industry , lignin , renewable energy , chemistry , chemical engineering , materials science , waste management , polyurethane , oceanography , engineering , geology , electrical engineering
Polyurethanes (PUs), produced from the condensation polymerizations between polyols and isocyanates, are one of the most versatile polymer families. Currently, both polyols and isocyanates are largely petroleum derived. Recently, there have been extensive research interests in developing bio‐based polyols and PUs from renewable resources. As the world’s most abundant renewable biomass, lignocellulosic biomass is rich in hydroxyl groups and has potential as a feedstock to produce bio‐based polyols and PUs. Lignocellulosic biomass can be converted to liquid polyols for PU applications through acid‐ or base‐catalyzed atmospheric liquefaction processes using polyhydric alcohols as liquefaction solvents. Biomass liquefaction‐derived polyols can be used to prepare various PU products, such as foams, films and adhesives. The properties of biomass liquefaction‐derived polyols and PUs depend on various factors, such as feedstock characteristics, liquefaction conditions, and PU formulations.