Log–log plots of the layer thicknessh_layer, normalized by the total chain lengthN=N_A+N_B, as a function of the grafting density for different A–B interaction parameters,α_AB, with the polymer–solvent interactions parameterα_PS= 25 (good solvent condition).^[80]Reprinted with permission from Gao H M, Liu H, Lu Z Y, Sun Z Y and An L J 2013J. Chem. Phys.138224905. Copyright 2013, American Institute of Physics.