Lignin models
|
Chain length
|
Mn
|
Mw
|
Mw/Mn
|
DPa
|
---|
Compound 4(Arβ) (13C-labeled aromatic rings and β positions)
|
Long
|
843
|
923
|
1.095
|
4.70
|
Short
|
480
|
520
|
1.083
|
2.64
|
Compound 4(α) (13C-labeled α positions)
|
Long
|
750
|
918
|
1.224
|
4.67
|
Short
|
531
|
614
|
1.156
|
3.12
|
Compound 4(m) (13C-labeled methoxy groups)
|
Long
|
629
|
818
|
1.301
|
4.16
|
Short
|
482
|
587
|
1.218
|
2.98
|
Compound 4 (unlabeled)
|
Long
|
882
|
964
|
1.092
|
4.91
|
Short
|
552
|
560
|
1.014
|
2.85
|
- aDP Degree of polymerization calculated from the Mw and theoretical molecular mass of the lignin model