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Assignments of signals in the C-4 region of the untreated and treated cellulose spectra
| Chemical shift (ppm) | Line shape | |
|---|---|---|
| I α | 89.35 (0.03)a | Lorentz |
| I ( α+ β) | 88.50 (0.10) | Lorentz |
| Paracrystalline | 88.25 (0.03) | Gauss |
| I β | 87.91 (0.15) | Lorentz |
| Accessible fibril surfaces | 84.95 (0.14) | Gauss |
| Inaccessible fibril surfaces | 83.43 (0.18) | Gauss |
| Accessible fibril surfaces | 83.26 (0.06) | Gauss |
| Cellulose oligomers | 81.68 (0.15) | Gauss |
aValues in brackets are standard errors
