Composite Materials and Engineering Center, Washington State University, Pullman, WA 99164, USA.
School of Chemical Engineering and Bioengineering, Bioproducts, Science and Engineering Laboratory, Washington State University, Richland, WA 99354, USA.
Bioresour Technol. 2014 Mar;155:422-6. doi: 10.1016/j.biortech.2013.12.092. Epub 2014 Jan 2.
In this work, partial depolymerization of enzymolysis lignin collected from a woody biomass-to-ethanol process was studied via mild hydrogenolysis under the catalysis of Raney Ni. The depolymerized lignin products were low molecular weight oligomers with increased hydroxyl values. The solvent selected, use of base and various reaction parameters were all found to influence yield of depolymerization, the molecular weight and hydroxyl value of the hydrogenated product. The depolymerized lignins displayed greatly enhanced solubility in organic solvents, and therefore would have great potential to be used as feedstock for many valuable thermosetting polymer applications.
在这项工作中，通过在雷尼镍的催化下进行温和的氢解反应，研究了从木质生物质制乙醇过程中收集的酶解木质素的部分解聚。解聚木质素产物是低分子量的寡聚物，羟基值增加。所选溶剂、碱的使用和各种反应参数都被发现会影响解聚的产率、氢化产物的分子量和羟基值。解聚木质素在有机溶剂中的溶解度大大提高，因此很有潜力用作许多有价值的热固性聚合物应用的原料。
