Paper Title:

Self-Assembly of Alkali Lignin in Tetrahydrofuran

Periodical Advanced Materials Research (Volumes 550 - 553)
Main Theme Advances in Chemical Engineering II
Edited by Zili Liu, Feng Peng and Xiaoguo Liu
Pages 57-61
DOI 10.4028/www.scientific.net/AMR.550-553.57
Citation Hao Li et al., 2012, Advanced Materials Research, 550-553, 57
Online since July, 2012
Authors Hao Li, Yong Hong Deng, Kai Huang
Keywords Aggregation, Alkali Lignin, Self-Assembly
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Abstract

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 π-π interaction in self-assembly of AL and PDAC. Results show that the self-assembly of AL/PDAC is mainly driven by π-π interaction and electrostatic interaction. A higher temperature or a larger concentration can enhance the aggregation of lignin. I2 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.