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

doi:10.1021/la0114979

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

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	3932-3944
Number of pages	13
Journal	Langmuir
Volume	18
Issue number	10
DOIs	https://doi.org/10.1021/la0114979
Publication status	Published - 2002 May 14

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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.",

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AU - Hayashi, Shujiro

AU - Abe, Takashi

AU - Higashi, Nobuyuki

AU - Niwa, Masazo

AU - Kurihara, Kazue

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AB - 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.

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

Abstract

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