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

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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

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Publication details

The article was received on 15 Jun 2018, accepted on 25 Aug 2018 and first published on 06 Sep 2018


Article type: Paper
DOI: 10.1039/C8NA00042E
Citation: Nanoscale Adv., 2019, Advance Article
  • Open access: Creative Commons BY-NC license
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    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, Advance Article , DOI: 10.1039/C8NA00042E

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