Effects of applied voltage and solution ph in fabricating multilayers of weakly charged polyelectrolytes and nanoparticles

Yukiko Omura; Kyu Hong Kyung; Seimei Shiratori; Sae Hoon Kim

doi:10.1021/ie403736r

Effects of applied voltage and solution ph in fabricating multilayers of weakly charged polyelectrolytes and nanoparticles

Yukiko Omura, Kyu Hong Kyung, Seimei Shiratori, Sae Hoon Kim

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

9 Citations (Scopus)

Abstract

The relationship between solution pH and effects of applied voltage in layer-by-layer (LbL) self-assembly was investigated, using weakly charged polyelectrolytes and nanoparticles. Poly(allylamine hydrochloride) (PAH)/poly(acrylic acid) (PAA) films and PAH/SiO₂ nanoparticle films were fabricated at several solution pH conditions, by LbL self-assembly under an applied voltage. Adsorption behavior and surface morphology of films fabricated under applied voltages depended on the solution pH. A textured structure was formed by applied voltage at a specific pH for PAH/PAA films. The effect of applied voltage on film deposition was related to the electrical charge density and polymer chain conformation. The effects of applied voltage were higher, when the polymer electrical charge density was higher, that is, when the polymer chain exhibited a stretched structure. It was found that the amount of adsorption increased at all pH conditions under the applied voltage.

Original language	English
Pages (from-to)	11727-11733
Number of pages	7
Journal	Industrial and Engineering Chemistry Research
Volume	53
Issue number	29
DOIs	https://doi.org/10.1021/ie403736r
Publication status	Published - 2014 Jul 23
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Industrial and Manufacturing Engineering

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10.1021/ie403736r

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title = "Effects of applied voltage and solution ph in fabricating multilayers of weakly charged polyelectrolytes and nanoparticles",

abstract = "The relationship between solution pH and effects of applied voltage in layer-by-layer (LbL) self-assembly was investigated, using weakly charged polyelectrolytes and nanoparticles. Poly(allylamine hydrochloride) (PAH)/poly(acrylic acid) (PAA) films and PAH/SiO2 nanoparticle films were fabricated at several solution pH conditions, by LbL self-assembly under an applied voltage. Adsorption behavior and surface morphology of films fabricated under applied voltages depended on the solution pH. A textured structure was formed by applied voltage at a specific pH for PAH/PAA films. The effect of applied voltage on film deposition was related to the electrical charge density and polymer chain conformation. The effects of applied voltage were higher, when the polymer electrical charge density was higher, that is, when the polymer chain exhibited a stretched structure. It was found that the amount of adsorption increased at all pH conditions under the applied voltage.",

author = "Yukiko Omura and Kyung, {Kyu Hong} and Seimei Shiratori and Kim, {Sae Hoon}",

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T1 - Effects of applied voltage and solution ph in fabricating multilayers of weakly charged polyelectrolytes and nanoparticles

AU - Omura, Yukiko

AU - Kyung, Kyu Hong

AU - Shiratori, Seimei

AU - Kim, Sae Hoon

PY - 2014/7/23

Y1 - 2014/7/23

N2 - The relationship between solution pH and effects of applied voltage in layer-by-layer (LbL) self-assembly was investigated, using weakly charged polyelectrolytes and nanoparticles. Poly(allylamine hydrochloride) (PAH)/poly(acrylic acid) (PAA) films and PAH/SiO2 nanoparticle films were fabricated at several solution pH conditions, by LbL self-assembly under an applied voltage. Adsorption behavior and surface morphology of films fabricated under applied voltages depended on the solution pH. A textured structure was formed by applied voltage at a specific pH for PAH/PAA films. The effect of applied voltage on film deposition was related to the electrical charge density and polymer chain conformation. The effects of applied voltage were higher, when the polymer electrical charge density was higher, that is, when the polymer chain exhibited a stretched structure. It was found that the amount of adsorption increased at all pH conditions under the applied voltage.

AB - The relationship between solution pH and effects of applied voltage in layer-by-layer (LbL) self-assembly was investigated, using weakly charged polyelectrolytes and nanoparticles. Poly(allylamine hydrochloride) (PAH)/poly(acrylic acid) (PAA) films and PAH/SiO2 nanoparticle films were fabricated at several solution pH conditions, by LbL self-assembly under an applied voltage. Adsorption behavior and surface morphology of films fabricated under applied voltages depended on the solution pH. A textured structure was formed by applied voltage at a specific pH for PAH/PAA films. The effect of applied voltage on film deposition was related to the electrical charge density and polymer chain conformation. The effects of applied voltage were higher, when the polymer electrical charge density was higher, that is, when the polymer chain exhibited a stretched structure. It was found that the amount of adsorption increased at all pH conditions under the applied voltage.

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JO - Industrial and Engineering Chemistry Research

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Effects of applied voltage and solution ph in fabricating multilayers of weakly charged polyelectrolytes and nanoparticles

Abstract

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