Communication

Control of Domain Orientation in Block Copolymer Electrolyte Membranes at the Interface with Humid Air

  1. Moon Jeong Park1,
  2. Suhan Kim2,
  3. Andrew M. Minor2,
  4. Alexander Hexemer3,
  5. Nitash P. Balsara1,*

Article first published online: 2 JAN 2009

DOI: 10.1002/adma.200801613

Issue

Advanced Materials

Advanced Materials

Volume 21, Issue 2, pages 203–208, January 12, 2009

Additional Information

How to Cite

Park, M. J., Kim, S., Minor, A. M., Hexemer, A. and Balsara, N. P. (2009), Control of Domain Orientation in Block Copolymer Electrolyte Membranes at the Interface with Humid Air. Adv. Mater., 21: 203–208. doi: 10.1002/adma.200801613

Author Information

  1. 1

    Department of Chemical Engineering, University of California Berkeley and Materials Sciences Division Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Berkeley, CA 94720 (USA)

  2. 2

    Department of Materials Sciences and Engineering University of California Berkeley and National Center for Electron Microscopy Lawrence Berkeley National Laboratory Berkeley, CA 94720 (USA)

  3. 3

    Advanced Light Source University of California, Berkeley Lawrence Berkeley National Laboratory Berkeley, CA 94720 (USA)

*Department of Chemical Engineering, University of California Berkeley and Materials Sciences Division Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Berkeley, CA 94720 (USA).

Publication History

  1. Issue published online: 2 JAN 2009
  2. Article first published online: 2 JAN 2009
  3. Manuscript Revised: 31 JUL 2008
  4. Manuscript Received: 12 JUN 2008

Funded by

  • LBNL
  • Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy. Grant Number: DE-AC02-05CH11231
  • Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Hydrogen, Fuel Cells and Infrastructure Technologies of the U.S. Department of Energy. Grant Number: DE-AC02-05CH11231

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Keywords:

  • block copolymers;
  • domain orientation;
  • humidity level;
  • polymer electrolyte membrane
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Domain orientation in polymer electrolyte membranes is tuned by controlling its sulfonation level and the moisture content of the air. At low sulfonation levels, highly ordered hydrophobic cylinders oriented perpendicular to the film surface are obtained, when the film is in humid air. Increasing the sulfonation level results in a transition from perpendicular to parallel orientation.

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