In order to understand the structure at high 𝑞 without the presence of the lamellar peak we systematically varied the solvent from CB to decane (Dec) as shown in Figure . All SAXS measurements for the CB/Dec series were performed at concentrations of 2 mg/mL due to large agglomeration in Dec at higher concentrations. Solutions with higher Dec fraction exhibited higher viscosity and visible agglomeration by eye. For all solvent ratios, the Guinier knee at 𝑞 ~ 0.025 Å -1 remains present and is preceded by a power law with slope ranging from -1 to -1.8, with generally steeper slopes in solutions with high Dec. Notably, as the Dec fraction is increased, the lamellar peak intensity reduces significantly. Surprisingly, as the lamellar peak disappears a second Guinier knee is revealed at 𝑞 ~ 0.1 Å -1 . We suspect that the disappearance of the lamellar peak with increasing Dec is due to the stronger interaction between Dec and the alkyl side chains as opposed to the conjugated core, therefore disrupting lamellar stacking held together by aggregated alkyl side chains. This hypothesis is consistent with the fact that the low 𝑞 intensity also reduces with increasing Dec since a reduced correlation between aggregating polymers reduces the scattering intensity of the overall aggregate feature at low 𝑞. This can be seen in Figure where the reduced intensity of the low 𝑞 knee at 0.025 Å -1 causes the effective, intermediate slope at 0.05 Å -1 to become shallower. While it is possible that the side chains will have reduced contrast in Dec due to chemical similarity, we do not believe that such an effect would result in the disappearance of the lamellar peak as even if the side chains were contrast matched with Dec, correlations between the conjugated backbone would still exist. In this work, we use Dec solvent as a means to access the newly revealed Guinier knee. The effect of solvents on the D-A conjugated polymer side chain and backbone and their subsequent effect on aggregation and SAXS is subject to future study.