东南大学学报（自然科学版）2017，Vol.47Issue(3)：528-533,6.DOI:10.3969/j.issn.1001-0505.2017.03.019
微波辅助木质素醇解制备芳香化合物
Lignin depolymerization to aromatic compounds in isopropanol assisted by microwave heating
摘要
Abstract
The effects of reaction temperature on the degradation of lignin to aromatic compounds in isopropanol were investigated by the mild microwave-assisted heating.And the liquefaction products were characterized by gas chromatography/mass spectrometer (GC/MS),matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) and carbon-13 nuclear magnetic resonance (13C-NMR).The results show that the highest yield of the liquid product achieves 45.35％ achieved at 120 ℃.The acetovanillone and the acetosyringone were evidenced as the prominent aromatic monomers in the liquid product.Fragments from the aromatic oligomers detected by MALDI-TOF MS were mainly located from 248 to 496.The 13C-NMR results reveal of the types and the distribution of major inter-linkages.Combining the molecular weights of oligomers with main types of linkages,possible structures of the oligomers are speculated.The distribution of the aromatic oligomers is calculated by establishing the matrix model.关键词
木质素/微波/降解/芳香环物质Key words
lignin/microwave/depolymerization/aromatic compounds分类
资源环境引用本文复制引用
刘娜娜,程崇博,胡珺,沈德魁..微波辅助木质素醇解制备芳香化合物[J].东南大学学报（自然科学版）,2017,47(3):528-533,6.基金项目
国家自然科学基金资助项目(51476034)、国家重点基础研究发展计划(973计划)资助项目(2012CB215306). （51476034）
