Synthesis of Alkali Lignin Aminated Polyol with Mannich Reaction

摘要：

As a solid waste in the papermaking industry, alkali lignin can be derived easily. Furthermore, scholars pay much attention to alkali lignin because it doesnt contain sulphur. In this study, the alkali lignin was modified with mannich reaction and then the alkali lignin aminated polyol was prepared. In the single factor experiments, mass ratio of diethanolamine to alkali lignin, ratio of formaldehyde to alkali lignin, reaction temperature, formaldehyde addition time, and total reaction time on hydroxyl value were investigated. The result showed that the optimum conditions were as follows: mass ratio of diethanolamine to alkali lig-nin=2, mass ratio of formaldehyde to alkali lignin=1.2, reaction temperature 80 ℃, formaldehyde addition time 1 h, and total reaction time 3 h. In addition, the samples were also characterized by Automatic Titrimeter and FT-IR.

关键词： alkali lignin mannich reaction diethanolamine aminated polyol

作者: Yitong ZHOU Xiaoli ZHANG Yuan GAO Liping ZHANG

作者单位: College of Material Science and Technology, Beijing Forestry University, Beijing, China

会议类型: 国际会议

会议名称: The Sixth International Conference on Waste Management and Technology(第六届固体废物管理与技术国际会议 ICWMT 6)

会议地点: 苏州

会议语种:英文

页码: 168-171

在线出版日期: 2011-08-30（万方平台首次上网日期，不代表论文的发表时间）