Self-assembly of Alkali Lignin in Tetrahydrofuran

被引：1
|
作者：
Li, Hao [1 ]
Deng, Yonghong [1 ]
Huang, Kai [1 ]
机构：
[1] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
来源：
ADVANCES IN CHEMICAL ENGINEERING II, PTS 1-4 | 2012年 / 550-553卷
关键词：
Alkali lignin; Aggregation; Self-assembly;
D O I：
10.4028/www.scientific.net/AMR.550-553.57
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Alkali lignin (AL) was used as a polyanion to form layer-by-layer self-assembled film with PDAC as a polycation. The effects of temperature and concentration on the adsorption characteristics of AL were investigated. Iodine was added into AL solutions to study the role of pi-pi interaction in self-assembly of AL and PDAC. Results show that the self-assembly of AL/PDAC is mainly driven by pi-pi interaction and electrostatic interaction. A higher temperature or a larger concentration can enhance the aggregation of lignin. I-2 can form lignin iodine charge transfer complexes with AL to reduce the degree of aggregation of AL, so the adsorbed amount of AL decreases significantly with increasing iodine contents.
引用
收藏
页码：57 / 61
页数：5
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