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Robust Organic/Inorganic Hybrid Porous Thin Films via Breath‐Figure Method and Gelation Process
Author(s) -
Zhang Ke,
Zhang Liwei,
Chen Yongming
Publication year - 2007
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200700384
Subject(s) - copolymer , materials science , polystyrene , porosity , chemical engineering , maleic anhydride , aqueous solution , thin film , sol gel , polymer chemistry , styrene , oxide , composite material , chemistry , nanotechnology , organic chemistry , polymer , engineering , metallurgy
A novel organic/inorganic hybrid honeycomb patterned porous thin film was prepared using the breath‐figure method combined with a sol‐gel process. An in situ formed gelable block copolymer, formed by mixing poly(styrene‐ alt ‐maleic anhydride)‐ block ‐polystyrene (P(St‐ a ‐MAn)‐ b ‐PS) and 3‐aminopropyltrimethoxysilane (APS), was used as the structure directing agent. The porous film produced was dipped into an acid aqueous solution to induce a sol‐gel process in the wall of film. As a result of gelation, the structure of this film transformed into a crosslinked silica oxide hybridized with PS, and this film resisted those organic solvents which were once good solvents for the copolymer precursor.