Table 3. Sizes and Calculated Molecular Weight at 25 °C as Inferred by SAXS Analysis of Polymeric Samples in a Unimer Form and in a Micellar Form Obtained by SDb and by PIMc.
| c (mg mL–1) | Rg (nm) | Dmax (nm) | I(0) (cm–1) | MWe (kDa) | Nagg | |
|---|---|---|---|---|---|---|
| H38-b-G475 | ||||||
| Unimera | 1.5 | 2.71 ± 0.08 | 9 ± 1 | 0.020 ± 0.001 | 42 ± 1 | 1 ± 0.05 |
| SDb | 1.5 | 17.3 ± 0.4 | 60 ± 2 | 1.188 ± 0.025 | 2934 ± 63 | 101 ± 2.2 |
| PIMc | 1.5 | 8.64 ± 0.12 | 29 ± 2 | 0.566 ± 0.007 | 1398 ± 17 | 48 ± 0.6 |
| H93-b-G975 | ||||||
| Unimerd | 2 | 4.4 ± 0.1 | 13 ± 1 | 0.043 ± 0.001 | 38 ± 1 | 1 ± 0.02 |
| Unimerd | 10 | 5.2 ± 0.1 | 18 ± 2 | 0.242 ± 0.003 | 44 ± 0.6 | 1 ± 0.01 |
| SDb | 1.5 | 11.4 ± 0.1 | 36 ± 2 | 1.48 ± 0.01 | 3510 ± 21 | 61 ± 0.4 |
| PIMc | 1.5 | 8.71 ± 0.08 | 28 ± 2 | 0.588 ± 0.006 | 1392 ± 13 | 24 ± 0.2 |
| H60-b-G253G922 | ||||||
| PIMc | 10 | 10.59 ± 0.02 | 32 ± 2 | 9.35 ± 0.02 | 3305 ± 8 | 97 ± 0.2 |
a
Polymer solubilized in water with 1.5 equiv of NaOH, resulting in a measured pH of 11–11.5.
b
Polymers were dissolved in DMF and then water was slowly added to 80% (w/w%). Residual DMF was removed by dialysis.
c
Polymer was solubilized in water with 1.5 equiv of NaOH, resulting in a measured pH of 11–11.5. HCl (0.1 M) was then gradually added to reach pH 6.5–7.
d
Polymer dissolved in DMF.
e
.