Electroresponsive Nanoporous Membranes by Coating Anodized Alumina with Poly(3,4-ethylenedioxythiophone) and Polypyrrole
2014 (English)In: Macromolecular materials and engineering (Print), ISSN 1438-7492, E-ISSN 1439-2054, Vol. 299, no 2, 190-197 p.Article in journal (Refereed) Published
Electrically-active nanoporous membranes are prepared by coating the surface of anodized alumina with electroactive polymers using vapor phase polymerization with four combinations of conjugated polymers and doping ions: poly(3,4-ethylenedioxythiophone) and polypyrrole, FeCl3 and FeTs3. The permeability of the polymer-coated membranes is measured as a function of the applied electric potential. A reversible three-fold increase is found in molecular flux of a neutral dye for membranes in oxidized state compared to that in the reduced state. After analyzing various factors that may affect the molecular transport through these membranes, it is concluded that the observed behavior results mostly from swelling/deswelling of the polymers and from the confinement of the polymers inside the nanopores.
Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2014. Vol. 299, no 2, 190-197 p.
electroresponsive; membrane; nanopore; vapor phase polymerization
IdentifiersURN: urn:nbn:se:liu:diva-103014DOI: 10.1002/mame.201200456ISI: 000336481500006OAI: oai:DiVA.org:liu-103014DiVA: diva2:685378