Polyelectrolyte brush layers studied by surface forces measurement: Dependence on pH and salt concentrations and scaling

Shujiro Hayashi, Takashi Abe, Nobuyuki Higashi, Masazo Niwa, Kazue Kurihara

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

The interactions between opposed brush layers of polyelectrolytes ionized poly(L-glutamic acid) (PLGA) or poly(L-lysine) (PLL) in water were discussed using surface forces measurements. The stress profiles, which were obtained by differentiating the force profiles, were scaled according to the distance to provide identical profiles for different polymer chain length. The analysis showed that the osmotic coefficient for both PLGA and PLL was 0.004.

Original languageEnglish
Pages (from-to)3932-3944
Number of pages13
JournalLangmuir
Volume18
Issue number10
DOIs
Publication statusPublished - 2002 May 14

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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