Self-Assembly of Alkali Lignin in Tetrahydrofuran

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.

• Periodical: Advanced Materials Research (Volumes 550-553)
• Pages: 57-61
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.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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