A polystyrene-block-polyethylene-block-poly(methyl methacrylate) (PS-b-PE-b-PMMA) triblock terpolymer is cocrystallized in a random fashion with a corresponding polystyrene-block-polyethylene-block-polystyrene (PS-b-PE-b-PS)
triblock copolymer to yield worm-like crystalline-core micelles
(wCCMs). And the corona composition (PMMA/PS fraction) can be easily
adjusted via the amount of PS-b-PE-b-PMMA triblock terpolymer in the mixture. Depending on the PMMA fraction, wCCMs with a mixed corona, spherical
PMMA patches embedded in a continuous PS corona, as well as alternating
PS and PMMA patches of almost equal size can be realized.