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Official Journal of the Japan Wood Research Society

Table 4 Solubility of original kraft lignin and the ester derivatives in common solvents

From: Selective substitution of long-acyl groups into alcohols of kraft lignin over transesterification using ionic liquid

Solvent

Kraft lignin

LigAc

LigPr

LigBu

LigHe

LigOc

Water

Methanol

DMSO

++

++

++

++

++

++

DMF

++

++

++

++

++

++

THF

++

++

Acetone

++

Chloroform

+

++

Hexane

  1. ++: soluble (≥ 2 g L−1); +: partially soluble (< 2 g L−1); −: insoluble