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Acid‐induced morphological transition of block copolymer brush adsorbed on mica surface
Author(s) -
Cong Yang,
Fu Jun,
Li Jian,
Han Yanchun
Publication year - 2005
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1801
Subject(s) - mica , copolymer , adsorption , materials science , brush , polymer chemistry , polystyrene , morphology (biology) , chemical engineering , porosity , adhesive , polymer , chemistry , composite material , layer (electronics) , organic chemistry , biology , engineering , genetics
The morphology and morphological transformation of polystyrene‐ block ‐poly(4‐vinylpyridine) (PS‐ b ‐P4VP) brushes on mica surfaces have been investigated. PS‐ b ‐P4VP brushes were adsorbed onto mica surfaces when dip‐coated from dilute solutions because of the strong polar adhesive interaction between the mica surface and the 4VP segments. Porous, bicontinuous layers and isolated clusters were obtained, depending on the concentration of the copolymer solution. These brushes can respond to the acid treatment, adopting elongated conformation. As a result, the relative height of the brushes increased and the lateral dimension decreased. Copyright © 2005 Society of Chemical Industry