Synthesis and morphological characterization of linear and miktoarm star poly(solketal methacrylate)-block-polystyrene copolymers

•Synthesis of miktoarm star block copolymers consisting of poly(glycerol monomethacrylate) (PGMA) and polystyrene (PS) via anionic polymerization.•Morphological evaluation of ABn,(n = 2,3) miktoarm star block copolymers.•Sub-10 nm structures were observed by copolymers of ultra-low degree of polymerization.