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. 2020 Mar 5;25(5):1158. doi: 10.3390/molecules25051158

Table 1.

Characterization of lignin fractions.

Lignin Fraction Yield (%) Mw (g/mol) 1 PDI 1 Tg (°C) 2 Aliphatic OH (mmol/g) 3 Aromatic OH (mmol/g) 3 COOH (mmol/g) 3
KL - 5200 3.5 132 2.0 4.3 0.4
KLMeOH 48 1610 2.0 89 1.7 4.5 0.5
KLAcetone 61 2540 2.2 114 1.5 4.6 0.5

1 Determined by GPC. 2 Determined by DSC. 3 Determined by 31P NMR.