Research Article
Cellulose Acetate Sulfate as a Lyotropic Liquid Crystalline Polyelectrolyte: Synthesis, Properties, and Application
Table 2
The location of signals from carbon nuclei atoms in NMR 13C spectra of cellulose and its derivatives.
| | Cellulose derivative | Chemical shift δ, ppm | | C1 | C2 C3 C5 | C4 | C6 | C7 (C=O) | C8 (CH3) |
| | Na-CS () | 101.5; 99.5 | 74.5—72.5 | 77.5; 79.0 | 69.0; 66.5; 60.5 | — | — | | CA () | 101.5; 99.5 | 74.5—72.5 | 78.5 | 62.5; 60.0 | 170.0; 169.8 | 21.4; 22.0 | | Na-CAS () | 98.7 | 74.0—72.0 | 76.5 | 64.5; 60.0 | 170.5 | 21.4 | | Cellulose i crystalline [8] | 105.0 | 75.0—71.8 | 89.0; 84.0 | 65.0; 62.5 | — | — | | Cellulose amorphous [8] | 104.5 | 75.0 | 84.0 | 62.5 | — | — |
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