Microphase Separation of Poly(2-(Dimethylamino)Ethyl Methacrylate)-b-Poly(Tetrahydropyranyl Methacrylate) Diblock Copolymer Thin Films.

ABSTRACT: The microphase separation in diblock copolymer films comprising two chemically similar methacrylate blocks, poly(2-(dimethylamino)ethyl methacrylate) and poly(tetrahydropyranyl methacrylate), is investigated. Four symmetric diblock copolymers, with M_n's ranging from 4300 to 109 700 g mol^-1 and narrow molecular weight distributions, are synthesized by group-transfer polymerization, are spin-coated from ethyl lactate solutions and are subsequently solvent vapor annealed. The two lower M_n copolymers dewet the silicon substrates after annealing, whereas the two higher M_n copolymers reveal the formation of holes and islands by optical microscopy, suggesting their microphase separation into lamellae structures orientated parallel to the substrate. The

SUBMITTER: Manouras T 

PROVIDER: S-EPMC12344483 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature