Effect of reaction conditions on film morphology of polyaniline composite membranes for gas separation

Natalia V. Blinova, Jaroslav Stejskal, Jean Frechet, František Švec

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Composite membranes combining polyaniline as an active layer with a polypropylene support have been prepared using an in situ deposition technique. The protonated polyaniline layer with a thickness in the range of 90-200 nm was prepared using precipitation, dispersion, or emulsion polymerization of aniline with simultaneous deposition on top of the porous polypropylene support, which was immersed in the reaction mixture. Variables such as temperature, concentration of reagents, presence of steric stabilizers, surfactants, and heteropolyacid were found to control both the formation and the quality of the polyaniline layers. Both morphology and thickness of the layers were characterized using scanning electron microscopy. Selective separation of carbon dioxide from its mixture with methane is used to illustrate potential application of these composite membranes. © 2012 Wiley Periodicals, Inc.
Original languageEnglish (US)
Pages (from-to)3077-3085
Number of pages9
JournalJournal of Polymer Science Part A: Polymer Chemistry
Volume50
Issue number15
DOIs
StatePublished - Apr 21 2012

ASJC Scopus subject areas

  • Materials Chemistry
  • Organic Chemistry
  • Polymers and Plastics

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