Breathing pores on command: redox-responsive spongy membranes from poly(ferrocenylsilane)s

Kaihuan Zhang; Xueling Feng; Xiaofeng Sui; Mark A Hempenius; G Julius Vancso

doi:10.1002/anie.201408010

Breathing pores on command: redox-responsive spongy membranes from poly(ferrocenylsilane)s

Angew Chem Int Ed Engl. 2014 Dec 8;53(50):13789-93. doi: 10.1002/anie.201408010. Epub 2014 Oct 24.

Authors

Kaihuan Zhang¹, Xueling Feng, Xiaofeng Sui, Mark A Hempenius, G Julius Vancso

Affiliation

¹ Materials Science and Technology of Polymers and MESA+Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede (The Netherlands).

PMID: 25345763
DOI: 10.1002/anie.201408010

Abstract

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.

Keywords: electrochemistry; poly(ferrocenylsilane)s; porous membranes; redox trigger; stimuli-responsive materials.