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Self‐Assembled Nanoscale Ring Arrays from a Polystyrene‐ b ‐polyferrocenylsilane‐ b ‐poly(2‐vinylpyridine)Triblock Terpolymer Thin Film
Author(s) -
Chuang Vivian P.,
Ross Caroline A.,
Gwyther Jessica,
Manners Ian
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200900756
Subject(s) - copolymer , materials science , ring (chemistry) , nanoscopic scale , core (optical fiber) , polystyrene , thin film , polymer chemistry , styrene , nanotechnology , composite material , polymer , organic chemistry , chemistry
Hollow ring arrays with an outer and inner diameter of 33 and 11 nm, respectively, are formed from a thin film of poly‐(styrene‐ b ‐ferrocenylethylmethylsilane‐ b ‐2‐vinyl pyridine) (PS‐ b ‐PFS‐ b ‐P2VP) triblock terpolymer with a core/shell cylindrical morphology. The PS minority block forms a core surrounded by a PFS shell in a P2VP matrix; the core/shell structure is oriented perpendicularly to the film surface. The PS core and P2VP matrix blocks are partly removed using oxygen reactive ion etching, leaving ring patterns made from oxidized PFS.