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Breathing Pores on Command: Redox‐Responsive Spongy Membranes from Poly(ferrocenylsilane)s
Author(s) -
Zhang Kaihuan,
Feng Xueling,
Sui Xiaofeng,
Hempenius Mark A.,
Vancso G. Julius
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201408010
Subject(s) - membrane , redox , chemistry , permeability (electromagnetism) , filtration (mathematics) , catalysis , porosity , ionic bonding , chemical engineering , ionic liquid , polymer chemistry , inorganic chemistry , organic chemistry , ion , biochemistry , statistics , mathematics , engineering
Redox‐responsive porous membranes can be readily formed by electrostatic complexation between redox active poly(ferrocenylsilane) PFS‐based poly(ionic liquid)s and organic acids. Redox‐induced changes on this membrane demonstrated reversible switching between more open and more closed porous structures. By taking advantage of the structure changes in the oxidized and reduced states, the porous membrane exhibits reversible permeability control and shows great potential in gated filtration, catalysis, and controlled release.