Phase diagram of symmetric ABA triblock copolymer brushes in a solvent that is selective to the B blocks with (a)σ= 0.0625 and (b)σ= 0.111 in theN_AandN_Bspace, where closed symbols represent micelles with only one A-rich layer, and open symbols represent micelles with two A-rich layers. The closed circles represent semispherical pinned micelles; the closed up-triangles, worm-like micelles; the closed squares, stripe structures; the closed down-triangles, perforated layer; the open circles, semi-spheres-spheres; the open up-triangles, worm-like micelles-spheres; the open squares, stripes-spheres. For micelles with two A-rich layers, they are named by a combination of the micelle names in the bottom A-rich layer and those in the top A-rich layer, separated by a “−” between them. The dashed line represents the phase boundary between structures with one and two A-rich layers.^[84]Reprinted with permission from Xu J, Yin Y, Wang Z, Jiang R, Li B and Shi A C 2013J. Chem. Phys.138114905. Copyright 2013, American Institute of Physics.