Tunable Thin Film Periodicities by Controlling the Orientation of Cylindrical Domains in Side Chain Liquid Crystalline Block Copolymers

Figure 6

AFM phase images of the thin films prepared from PS-b-P8FMA on various BSLs: (a) (43-54-3) and (b) (77-20-3). The BCP thickness is controlled being 1.5 L₀. The upper left inset displays the Fourier-transform pattern of the real-space image and the periodic length of domain is estimated from FFT. The inset of AFM height image in (a) shows the hexagonally packing array over the magnified scanning area.

(a)

(b)