Details

Autor(en) / Beteiligte

• Zhao, Wenwen
• Xiao, Ling-Ping
• Song, Guoyong
• Sun, Run-Cang
• He, Lilin
• Singh, Seema
• Simmons, Blake A.
• Cheng, Gang

Titel

From lignin subunits to aggregates: insights into lignin solubilization

Ist Teil von

• Green chemistry : an international journal and green chemistry resource : GC, 2017, Vol.19 (14), p.3272-3281

Erscheinungsjahr

2017

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A fundamental understanding of lignin solubilization offers structural information that would benefit a variety of value added applications. Small angle neutron scattering (SANS) and nuclear magnetic resonance (NMR) spectroscopy were used to study correlations between the functional groups/substructures and solution structures of lignin in DMSO- d 6 and 0.1 N NaOD. Three types of alkaline lignins (Sigma-Aldrich kraft lignin, poplar wood kraft lignin, and corncob soda lignin), exhibiting different degrees of aggregation in 0.4 wt% solutions, were investigated to identify the major intermolecular interactions that cause lignin aggregation. Intermolecular hydrogen bonding, non-covalent π–π interactions between phenyl rings, lignin chain conformation and the degree of branching were discussed. Different operating forces for lignin solubilization and aggregation were found in DMSO- d 6 and NaOD solutions.