Fig. 2.

(A) SANS form factors of the large microgels and corresponding fits in (red triangles) a bidisperse sample with $n_{\text{b}}=\left(2.9\pm 0.3\right)\text{\%}$ and $\zeta =0.85\pm 0.05$ and in (black plus signs) a monodisperse large-only sample with $\zeta \approx 0.08$. See Table S1 for fully swollen particle radii. The lines show the form factor fits to the data. (B) SANS radius of the large particles (black plus signs) in the bidisperse sample shown in A and the osmotic pressure (red squares) vs. ζ. The dashed lines are linear fits to $\mathrm{\Pi }\left(\zeta \right)$ for (blue) $\zeta <0.85$ and (green) $\zeta >0.85$ highlighting the change in slope at $\zeta \approx 0.85$.