Table 1. Elemental Composition, Cationic Charge from Polyelectrolyte Titration, and Calculated DS of b-HEC, b-PVA, c-HEC, and q-HECa.
| % N | % C | % H | charge (PE) (mmol/g) | DSEA | DSPE | |
|---|---|---|---|---|---|---|
| betaine HCltheor. | 9.12 | 39.10 | 7.87 | 9.51 | ||
| choline chloridetheor. | 10.03 | 43.01 | 10.11 | 7.16 | ||
| HECtheor. | 47.28 | 7.11 | ||||
| PVAtheor. | 54.53 | 9.15 | ||||
| b-HEC | 3.72 ± 0.02 | 36.29 ± 0.31 | 6.45 ± 0.03 | 2.27 ± 0.37 | 1.22 | 1 |
| b-PVA | 5.76 ± 0.06 | 42.79 ± 0.03 | 8.48 ± 0.13 | 4.46 ± 1.22 | 0.41 | 0.68 |
| c-HEC | 2.94 ± 0.03 | 29.36 ± 0.35 | 5.27 ± 0.21 | 2.21 ± 0 | 0.94 | 1.03 |
| q-HEC | 1.46 ± 0.05 | 43.71 ± 0.14 | 7.69 ± 0.30 | 1.55 ± 0 | 0.36 | 0.56 |
a
EA and charge of starting materials was calculated from theory.