Table 1.
Physical properties of chitosan derivatives.
| Parent Chitosan Material | DA (%) | Chitosan (1i–v) | Mes-CS (2i–v) | TMA-CS (6i–v) | PyA-CS (8i–v) | TMHA-CS (11i–v) | PyHA-CS (13i–v) | TMC (15i–v) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mw | (PDI) | Mw | (PDI) | Mw | (PDI) | Mw | (PDI) | Mw | (PDI) | Mw | (PDI) | Mw | (PDI) | ||
| CS-i | 7 | 235 | (2.8) | 24.6 | (1.6) | 23.8 | (2.1) | 18.8 | (1.8) | 17.3 | (1.6) | 12.9 | (1.5) | 18.7 | (1.5) |
| CS-ii | 6 | 294 | (2.3) | 20.8 | (1.9) | 17.1 | (1.8) | 17.3 | (2.0) | 15.1 | (1.5) | 9.8 | (1.3) | 15.3 | (1.4) |
| CS-iii | 17.3 | 225 | (2.6) | 19.1 | (1.6) | 16.4 | (1.6) | 12.2 | (1.9) | 13.1 | (1.4) | - | - | 13.2 | (1.4) |
| CS-iv | 19 | 308 | (2.6) | 21.4 | (2.4) | 16.7 | (1.6) | 14.6 | (1.8) | 14.2 | (1.8) | 15.8 | (1.1) | 19.8 | (1.6) |
| CS-v | 34.2 | 180 | (2.9) | 19.5 | (1.5) | 18.9 | (1.7) | 10.8 | (1.4) | 7.4 | (1.4) | - | - | 16.5 | (1.5) |
The average molecular weight (Mw) is in kDa, and the polydispersity index is abbreviated as (PDI). DA = degree of acetylation.