Electrically-responsive deformation of polyelectrolyte complex (PEC) fibrous membrane

Mor Boas; Michael Burman; Alexander L. Yarin; Eyal Zussman

doi:10.1016/j.polymer.2018.10.064

Electrically-responsive deformation of polyelectrolyte complex (PEC) fibrous membrane

Mor Boas, Michael Burman, Alexander L. Yarin, Eyal Zussman

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

10 Citations (Scopus)

Abstract

This study aims at the effect of electro-osmotic flow on a fibrous membrane comprised of assembled oppositely-charged polyelectrolytes and submerged in aqueous ionic solution. As electric field is applied across an edge-clamped circular membrane, it deforms under the action of a transverse force, the origin of which is in focus. Fibers were electrospun from a blend of poly(allylamine hydrochloride)/poly(acrylic acid) (PAH/PAA). A model is presented, which explains and describes the membrane deformation in terms of the ionic strength and pH level of the solution, the membrane geometry and porosity, the ζ-potential and elastic modulus of the membrane, as well as the applied cross-membrane electric potential difference. The model is corroborated by a set of experiments. The dependence of the membrane deformation on the electric potential was found to be rather weak, while the elastic modulus was found to be strongly dependent on the solution pH.

Original language	English
Pages (from-to)	262-269
Number of pages	8
Journal	Polymer
Volume	158
DOIs	https://doi.org/10.1016/j.polymer.2018.10.064
Publication status	Published - 2018 Dec 5

Bibliographical note

Funding Information:
This work was supported by the Russell Berrie Nanotechnology Institute (RBNI) , the Israel Science Foundation (ISF Grant No. 286/15 ). E.Z. acknowledges the financial support of the Winograd Chair.

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

Deflection
Electro-osmotic flow
Fibrous membrane
Polyelectrolytes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/j.polymer.2018.10.064

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title = "Electrically-responsive deformation of polyelectrolyte complex (PEC) fibrous membrane",

abstract = "This study aims at the effect of electro-osmotic flow on a fibrous membrane comprised of assembled oppositely-charged polyelectrolytes and submerged in aqueous ionic solution. As electric field is applied across an edge-clamped circular membrane, it deforms under the action of a transverse force, the origin of which is in focus. Fibers were electrospun from a blend of poly(allylamine hydrochloride)/poly(acrylic acid) (PAH/PAA). A model is presented, which explains and describes the membrane deformation in terms of the ionic strength and pH level of the solution, the membrane geometry and porosity, the ζ-potential and elastic modulus of the membrane, as well as the applied cross-membrane electric potential difference. The model is corroborated by a set of experiments. The dependence of the membrane deformation on the electric potential was found to be rather weak, while the elastic modulus was found to be strongly dependent on the solution pH.",

keywords = "Deflection, Electro-osmotic flow, Fibrous membrane, Polyelectrolytes",

author = "Mor Boas and Michael Burman and Yarin, {Alexander L.} and Eyal Zussman",

note = "Funding Information: This work was supported by the Russell Berrie Nanotechnology Institute (RBNI) , the Israel Science Foundation (ISF Grant No. 286/15 ). E.Z. acknowledges the financial support of the Winograd Chair. Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

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doi = "10.1016/j.polymer.2018.10.064",

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AU - Boas, Mor

AU - Burman, Michael

AU - Yarin, Alexander L.

AU - Zussman, Eyal

N1 - Funding Information: This work was supported by the Russell Berrie Nanotechnology Institute (RBNI) , the Israel Science Foundation (ISF Grant No. 286/15 ). E.Z. acknowledges the financial support of the Winograd Chair. Publisher Copyright: © 2018 Elsevier Ltd

PY - 2018/12/5

Y1 - 2018/12/5

N2 - This study aims at the effect of electro-osmotic flow on a fibrous membrane comprised of assembled oppositely-charged polyelectrolytes and submerged in aqueous ionic solution. As electric field is applied across an edge-clamped circular membrane, it deforms under the action of a transverse force, the origin of which is in focus. Fibers were electrospun from a blend of poly(allylamine hydrochloride)/poly(acrylic acid) (PAH/PAA). A model is presented, which explains and describes the membrane deformation in terms of the ionic strength and pH level of the solution, the membrane geometry and porosity, the ζ-potential and elastic modulus of the membrane, as well as the applied cross-membrane electric potential difference. The model is corroborated by a set of experiments. The dependence of the membrane deformation on the electric potential was found to be rather weak, while the elastic modulus was found to be strongly dependent on the solution pH.

AB - This study aims at the effect of electro-osmotic flow on a fibrous membrane comprised of assembled oppositely-charged polyelectrolytes and submerged in aqueous ionic solution. As electric field is applied across an edge-clamped circular membrane, it deforms under the action of a transverse force, the origin of which is in focus. Fibers were electrospun from a blend of poly(allylamine hydrochloride)/poly(acrylic acid) (PAH/PAA). A model is presented, which explains and describes the membrane deformation in terms of the ionic strength and pH level of the solution, the membrane geometry and porosity, the ζ-potential and elastic modulus of the membrane, as well as the applied cross-membrane electric potential difference. The model is corroborated by a set of experiments. The dependence of the membrane deformation on the electric potential was found to be rather weak, while the elastic modulus was found to be strongly dependent on the solution pH.

KW - Deflection

KW - Electro-osmotic flow

KW - Fibrous membrane

KW - Polyelectrolytes

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DO - 10.1016/j.polymer.2018.10.064

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SN - 0032-3861

VL - 158

SP - 262

EP - 269

JO - Polymer

JF - Polymer

ER -

Electrically-responsive deformation of polyelectrolyte complex (PEC) fibrous membrane

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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