Official Journal of the Japan Wood Research Society
Table 2 Molecular weight and proportion of glycol lignins
|  | Proportion (%) | M w (× 103 g/mol) |
|---|---|---|
PEG200-lignin | – | 6.5 |
PEG400-lignin | – | 8.1 |
PEG600-lignin | – | 8.0 |
Fraction 1 | 86.9 | 9.7 |
Fraction 2 | 3.9 | 8.0 |
Fraction 3 | 5.4 | 6.2 |
Fraction 4 | 3.7 | 4.9 |