Figure 3.

(a-b) Schematic representation for the helical structure and domain of rod blocks of block copolymers. In figure (b), the enlarged view indicates the local twisting packing of rod blocks. The sketch of definitions of screw pitch P₁ and twisted angle θ is also shown. (c) Typical result of cos(θ) as a function of position along the long axis in the helical fiber of R₇C₃/R₁₅₀ mixtures at ε_RR = 2.1. The distance between dashed lines was defined as the local twisting pitch P₂ of rod blocks.