Table S1.
Elemental analysis of VES-g-CSO and VES-g-CS
| Polymer | N% | C% | H% | DS (%) |
|---|---|---|---|---|
| CSO | 6.4±0.1 | 34.1±0.2 | 6.6±0.1 | / |
| VES-g-CSO | 4.5±0.2 | 34.5±0.2 | 6.8±0.1 | 1.2±0.3 |
| CS | 7.3±0.0 | 40.1±0.1 | 7.2±0.1 | / |
| VES-g-CS | 6.4±0.1 | 40.3±0.8 | 7.1±0.1 | 3.0±0.8 |
Notes: Data were presented as mean ± SD (n=3). “/”means the data is indeterminable.
Abbreviations: DS (%), degree of substitution of VES to amino group of CSO or CS was calculated by elemental analysis; CS, chitosan; CSO, chitosan oligosaccharide; VES-g-CSO, vitamin E succinate- grafted-chitosan oligosaccharide; VES-g-CS, vitamin E succinate-grafted-chitosan.