Table 1.
Chemical composition of kraft lignin used in this study

Total lignin content (%)	94.1 (0.61)
Klason lignin (%)	87.4 (0.93)
Acid soluble lignin (%)	6.7 (0.32)
Ash (%)	2.9 (0.13)
Carbohydrate (%)	1.9 (0.07)
Mw(Daltons)	2,813
Mw (Daltons) of acetylated lignin	4,068
C (wt%)	59.7
H (wt%)	5.3
O1(wt%)	31.2
N (wt%)	0.4
S (wt%)	3.3

By difference