Ordered structures of styrene–butadiene block copolymers in the solid state

摘要: Several narrow molecular weight distribution block copolymers were prepared by a two-stage anionic polymerization technique. Films cast from these solutions studied electron microscopy. Replicas showed that the film surfaces composed of layered structures with various orientations. Micrographs ultrathin sections stained films demonstrate structure occur throughout film. The widths copolymer layer spacings increase increasing and agree quite well calculated values.