We then use the ICSI method to measure the location of the various polymer conformations within each micelle (Figure ). Snapshots of each micelle with its constituent polymers colored by the corresponding cluster number are also shown in Figure . In the MA-terminated linear polymers, the intrinsic densities of the various clusters are less than found in the other micelles, which is indicative of more water present in the core as shown in Figure (a). Also there is not a significant difference in the distributions of the three conformations within the micelle. The most extended conformation (cluster 2) is representative of the previously mentioned polymers that have at most one MA block in the core of the micelle, and is also slightly more commonly found in the core. In the EO-terminated linear and cyclic micelles that have a more stable core, the polymers take specific conformations depending on their position within the core of the micelle. For example, the most extended conformation of the EO-terminated linear polymers (cluster 2) is more likely to be found in the core of the micelle with the MA block spanning the micelle and the two EO blocks extended into solution. Closer to the core-shell interface, there is an increased density of the other two conformations which have more collapsed MA blocks resulting in the MA monomers shielding the core of the micelle from the surrounding water.