TABLE 3.
Mixing strategy at a 1:1 mass ratio of BCPs and properties of the binary mixtures of PS–PVP BCP NPs.
| Mixture ID | BCP I a | BCP II a | Mixing protocol | Number of large NPs b | RMS roughness (nm) c | R h1 (nm) d | R h2 (nm) d |
|---|---|---|---|---|---|---|---|
| D1S1-1 | D1 | S1 | Premixing | >20 | 7 ± 1 | 47 ± 6 | |
| D1S1-2 | D1 | S1 | Postmixing | >20 | 8 ± 1 | 45 ± 8 | |
| D1S1-3 | D1-C70 | S1-C70 | Postmixing | >20 | 7 ± 1 | 32 ± 4 | 83 ± 7 |
| D2S5-1 | D2 | S5 | Premixing | >20 | 32 ± 6 | 151 ± 10 | |
| D2S5-2 | D2 | S5 | Postmixing | 10–15 | 17 ± 3 | 91 ± 5 | |
| D2S5-3 | D2-C70 | S5-C70 | Postmixing | 10–15 | 19 ± 4 | 100 ± 8 | |
| S2T3-1 | S2 | T3 | Premixing | 5–10 | 11 ± 2 | 33 ± 3 | 74 ± 6 |
| S2T3-2 | S2 | T3 | Postmixing | 5–10 | 8 ± 2 | 51 ± 7 | 150 ± 12 |
| S2T3-3 | S2-C70 | T3-C70 | postmixing | >20 | 20 ± 3 | 50 ± 4 | 136 ± 9 |
| S2T3-4 | S2 | T3-C70 | postmixing | 5–10 | 10 ± 1 | 50 ± 3 | 152 ± 8 |
| S2T3-5 | S2-C70 | T3 | postmixing | >20 | 21 ± 4 | 41 ± 3 | 138 ± 9 |
| S2T3-6 | S2-C20 | T3 | postmixing | 5–10 | 14 ± 3 | 42 ± 3 | 147 ± 11 |
b
Number of the large particles in a 2 μm × 2 µm AFM image. For this, large is set at diameters >50 nm for D1+S1 mixtures and diameters >100 nm for D2+S5 and for S2+T3 mixtures.
c
Acquired by AFM roughness analysis, and the uncertainty represents one standard deviation.
d
Results acquired from DLS measurements in a methanol/THF (v:v = 3:1) mixture at C = .25 mg/ml. The DLS data is presented as mean ± standard deviation (n = 3).