z∕σ z/ɑ
z∕σ
z∕σ
Figure 6.10: Segment density profiles of the two grafted monolayers (Ns = 101, ρgσ'g =
0.1) and the free polymer (Ny = 100, pf σ'j = 0.25) at separations, (a) H = 90 σ, (b) H =
80 σ, (c) H = 70 σ, and (d) H = 65 σ. σg = σy = σ.
separations. There is a higher entropie advantage for the free ends of the two mono-
layers to mutually overlap each other rather than the two monolayers overlapping
with the longer free polymer chains. Hence, the attractive minimum increases with
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