Figure 4.

Illustration of molecular composition and self-assembly resulting from different miktoarm star synthesis techniques. (a) Simple ROMP copolymerization of two macromonomers generates dispersity in composition and the number of A and B arms, which promotes flat block–block interfaces.58 (b) Asymmetric miktoarm stars (e.g., AB3) created by a precise synthesis favor interfacial curvature toward the A block.15 (c) μSTAR produces miktoarm stars with a distribution of B arms and exactly one A arm, resulting in interfacial curvature that is equivalent to precise analogues comprising the average molecular composition.