| Abstract: | Equilibrium structures of two kinds of two‐component copolymers with equivalent chemical contents but with different chain architectures in bulk were compared. They are BAB triblock copolymers and AB2 star‐branched graft copolymers. These copolymers have been confirmed to show quite different morphological change with composition. Deformation manner of B block chains of lamellar microphase‐separated BAB triblock copolymers depend on B contents, however, the volumes of the deformed coils are always kept constant to have those of the unperturbed chains irrespective of their architectures. The observed polystyrene/poly(2‐vinylpyridine) interfacial thickness is fairly thin though it is much thicker than the theoretically‐predicted one. |
