期刊
JOURNAL OF RENEWABLE MATERIALS
卷 5, 期 5, 页码 388-399出版社
TECH SCIENCE PRESS
DOI: 10.7569/JRM.2017.634142
关键词
Lignin-amine reactions; lignin-amine condensation; oligomer distribution; resins; MALDI-TOF; CP-MAS C-13 NMR; FTIR
资金
- French National Research Agency (ANR) [ANR-11-LABX-0002-01]
- King Abdulaziz University (KAU) [4-130-37-RG]
- KAU
The reaction of a desulphurized kraft lignin with hexamethylene diamine as a model of a polyamine has been investigated. For this purpose, guaiacol was also used as a lignin model compound and treated under similar conditions. Solid state CP-MAS C-13 NMR, FTIR and MALDI-TOF spectroscopy studies revealed that polycondensation compounds leading to resins were obtained by the reaction of the amines with the phenolic and aliphatic hydroxy groups of lignin. Simultaneously a second reaction leading to the formation of ionic bonds between the same groups occurred. These new reactions have been clearly shown to involve several phenolic and alcohol hydroxyl groups, as well as lignin units oligomerization, to form hardened resins.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据