Crystalline types | Chemical shift (ppm) | Proportion (%) | ||||
---|---|---|---|---|---|---|
S | DS | PS2 | PS3 | NS | ||
Cellulose I (C6) | 64.5–66.0 | 28.1 | 36.9 | 27.4 | 32.0 | 7.91 |
Cellulose II (C1) | 106.0–107.0 | NDa | NDa | NDa | NDa | 11.8 |
Cellulose I α (C1) | 104.9 (0.1) | 62.5 | 59.6 | 43.7 | 35.1 | 8.90 |
Cellulose I β (C1) | 105.9, 103.8 | 15.8 | 26.8 | 32.2 | 51.9 | 49.5 |
Less-ordered (C1) | 103.2, 102.6 (0.2) 21.7 | 21.7 | 13.6 | 24.1 | 13.0 | 27.8 |
Crystallinity index CrI | 35.4 | 45.8 | 32.8 | 29.6 | 16.8 |