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Structure of the polymer layers shown in Figure 2 that contain PEG-5k for the cases where the surfaces are far apart (A) and separated by a distance of D = 7 nm. 〈Φ5k(z)〉 is defined as the ratio between the volume fraction and the concentration of PEG-5k, 〈ϕ5k(z)〉/x5k.
