For water contents less than 50 mol% (i.e., xA > 0.5), the SAXS signal is very weak. This may suggest that the first MCSs to form just have one or two waters bridging between pairs of DIPAs, much like the simple dumbbell MCS (Figure , middle). Such structures would be visible in the PDF but not in the SAXS since they do not resemble a nanoscale phase separation and therefore a longer-scale heterogeneity in scattering density. The SAXS signal will appear as they form into reverse micelles with a higher water content at the center and a small water content outside. The inverse micelle formation is a mechanism for the DIPA-rich phase to accommodate more water even though the hydrogen bonding requirements of all the DIPA molecules have been satisfied. Rather than excess water molecules being coordinated by DIPA in a non-hydrogen bonded way, the water molecules cluster with each other within the reverse micelles and gain water-water hydrogen bonding energy while still satisfying all the O-H-N hydrogen bond possibilities.