Morphologies of grafted Y-shaped copolymers in selective poor solvents at a low grafting densityσ= 0.028: (a) core-shell micelles withε_AB= 0, (b) internally segregated micelles (or partially A-covered micelles) withε_AB= 0.9; (c) hamburger-like micelles withε_AB= 1.5; (d) segmented worm-like micelles withε_AB= 1.6; (e) connected micelles withε_AB= 2.0; and (f) split micelles withε_AB= 3.0.^[79]Reprinted with permission from Yin Y, Jiang R, Li B, Jin Q, Ding D and Shi A C 2008J. Chem. Phys.129154903. Copyright 2008, American Institute of Physics.