Counterion Immobilization in a Strong Polyelectrolyte Brush by Zeta Potential Measurements

• Fujima Takuya

  EcoTopia Science Institute, Nagoya University

• Okano Takashi

  EcoTopia Science Institute, Nagoya University

• Saito Nagahiro

  Graduate School of Engineering, Nagoya University

• Takai Osamu

  EcoTopia Science Institute, Nagoya University

Abstract

The counterion immobilization has been investigated about a brush configuration of a strong polyelectrolyte, sodium polystyrene sulfonate (NaPSS). Zeta potential of the planar NaPSS brushes was measured under a variety of salt, sodium chloride (NaCl), concentration conditions. Analysis based on Poisson-Boltzmann equation provided the amount of counterion that was unimmobilized and hydrodynamically mobile outside the brush layer. Its salt concentration dependence revealed the counterion immobilization to be weakened by the salt addition with following a power law between the unimmobilized counterion rate and the added salt concentration.

Journal

• Transactions of the Materials Research Society of Japan

  Transactions of the Materials Research Society of Japan 33 (2), 323-326, 2008-06-01

  The Materials Research Society of Japan

Details

• CRID: 1390565134835702144
• NII Article ID: 130007809392
• DOI: 10.14723/tmrsj.33.323
• ISSN: 21881650
• ISSN: 13823469
• Web Site: https://www.jstage.jst.go.jp/article/tmrsj/33/2/33_323/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed