Issue 1, 2019

On the solution structure of kraft lignin in ethylene glycol and its implication for nanoparticle preparation

Abstract

Ethylene glycol (EG) starts to attract attention as a robust solvent for lignin processing. However its solution structure has not been revealed. In this effort, small angle neutron scattering (SANS) and dynamic light scattering are used to understand the dissolution of kraft lignin in EG and the impact of the resultant solution structure on nanoparticle preparation. Lignin solutions with different concentrations (0.6 to 13.0 wt%) were explored by SANS, allowing evaluation of the solvent quality, the conformation of lignin subunits and their aggregation in EG. Molecular interactions between EG and lignin were discussed and compared to those between DMSO and lignin. The process of nanoparticle preparation from EG solutions upon addition of anti-solvents was also discussed.

Graphical abstract: On the solution structure of kraft lignin in ethylene glycol and its implication for nanoparticle preparation

Article information

Article type
Paper
Submitted
15 6 2018
Accepted
25 8 2018
First published
06 9 2018
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2019,1, 299-304

On the solution structure of kraft lignin in ethylene glycol and its implication for nanoparticle preparation

M. Yang, W. Zhao, S. Singh, B. Simmons and G. Cheng, Nanoscale Adv., 2019, 1, 299 DOI: 10.1039/C8NA00042E

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