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The height (h1) and width (2R1) of the first layer and the height (h2) and width (2R2) of the cap (second layer on top of the first layer - see Fig. 1b) were measured as a function of the degree of polymerization of the poly(n-butyl acrylate) side chains on mica. The linear fits (red solid lines) of the log-log plots give the following scaling laws: R1 ~ N1/03±0/04, R2 ~ N0/65±0/02, h1 ~ N0, and h2 ~ N0/57±0/04.
