Crystal structure analysis of cylindrical phase of polystyrene-b-polyethylenebutylene-b-polystyrene triblock copolymer

Crystal structure analysis of cylindrical phase of polystyrene-b-polyethylenebutylene-b-polystyrene triblock polymer was carried out. One cylinder with radius 74.20 Å passes through a hexagonal unit cell with a=b=294.42 Å, c=∞, β=120°. The temperature factor which reflects the disorder of the cylinder is 14,525 and 〈Δr2〉1/2 is estimated as 13.56 Å. This suggests that the cylinder is distorted and the surface of the cylinder is disordered.