Table 4.
RH of HB-PNIPAM polymers from Methanol SEC.
| SEC |
DOSY |
|||||
|---|---|---|---|---|---|---|
| NIPAM: VBPa | RHn | RHw | −logD (S)b | -logD (P)b | RHn | RHw |
| MeOD | – | – | 9.087 | – | – | – |
| 15:1 | 19.7 | 26.38 | 8.616 | 10.224 | 23.6 | 24.5 |
| 25:1 | 17.89 | 27.40 | 8.648 | 10.243 | 23.6 | 24.5 |
| 35:1 | 16.29 | 27.08 | 8.636 | 10.208 | 22.9 | 24.0 |
| 45:1 | 15.71 | 24.89 | 8.625 | 10.182 | 20.6 | 21.3 |
| 55:1 | 16.02 | 24.04 | 8.641 | 10.207 | 20.4 | 20.9 |
| 65:1 | 15.33 | 23.39 | 8.663 | 10.215 | 19.8 | 20.4 |
| 75:1 | 16.05 | 23.41 | 8.636 | 10.212 | 19.9 | 20.6 |
| 85:1 | 16.93 | 23.89 | 8.639 | 10.211 | 20.4 | 21.0 |
a
Molar reaction feed.
b
Diffusion of solvent (S) and polymer (P) 1H proton peaks.