Bending Behavior and Directed Self-Assembly of Rod–Coil Block Copolymers

The formation of zigzags, chevrons, Y-junctions, and line segments is demonstrated in thin films formed from cylindrical morphology silicon-containing conformationally asymmetric rod-coil diblock copolymers triblock terpolymers under solvent annealing. Directed self-assembly the block within trenches yields well-ordered microdomains oriented either parallel or transverse to sidewalls depending on chemical functionalization sidewalls, location structure concentric bends cylinders determined by shape trenches. innate etching contrast, spontaneous sharp junctions, range periodicity line/space ratios make these polymers attractive for nanoscale pattern generation.