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

19 Scopus citations


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
Issue number15
StatePublished - Apr 21 2012

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: N.V. Blinova, F. Svec, and the preparation of films were supported as part of the Center for Gas Separations Relevant to Clean Energy Technologies, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, and Office of Basic Energy Sciences under Award Number DE-SC0001015. Characterization work performed at the Molecular Foundry, Lawrence Berkeley National Laboratory was supported by the Office of Science, Office of Basic Energy Sciences, U.S. Department of Energy, under Contract No. DE-AC02-05CH11231. Thanks are also due to Fedor Kraev, AIST-NT, Inc. (Novato CA, USA) for the AFM measurements.

ASJC Scopus subject areas

  • Materials Chemistry
  • Organic Chemistry
  • Polymers and Plastics


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