Synthesis and properties of polymer brushes bearing ionic liquid moieties

Bo Yu; Feng Zhou; Haiyuan Hu; Chengwei Wang; Weimin Liu

doi:10.1016/j.electacta.2007.07.018

Synthesis and properties of polymer brushes bearing ionic liquid moieties

Bo Yu, Feng Zhou, Haiyuan Hu, Chengwei Wang, Weimin Liu

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

42 Scopus citations

Abstract

Poly(1-ethyl 3-(2-methacryloyloxy ethyl) imidazolium chloride) (PEMEIm-Cl) brushes were grafted onto Au surface via surface initiated atom transfer radical polymerization (ATRP). The swelling/collapsed behavior of the brushes was characterized by AFM in different electrolyte solutions. These 15 nm ultrathin polyelectrolyte brushes can be used to modulate the interfacial resistance via conformational changes triggered by external electrolytes and solvent. The interfacial resistance was characterized using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) using [Fe(CN)₆]^3-/4- as the redox probe. The effects of electrolytes, the concentration and type of electrolytes and temperature are investigated in more detail.

Original language	English
Pages (from-to)	487-494
Number of pages	8
Journal	Electrochimica Acta
Volume	53
Issue number	2
DOIs	https://doi.org/10.1016/j.electacta.2007.07.018
State	Published - 1 Dec 2007
Externally published	Yes

Keywords

Electrochemical impedance spectroscopy
Polymer brush
Responsive surfaces

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10.1016/j.electacta.2007.07.018

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abstract = "Poly(1-ethyl 3-(2-methacryloyloxy ethyl) imidazolium chloride) (PEMEIm-Cl) brushes were grafted onto Au surface via surface initiated atom transfer radical polymerization (ATRP). The swelling/collapsed behavior of the brushes was characterized by AFM in different electrolyte solutions. These 15 nm ultrathin polyelectrolyte brushes can be used to modulate the interfacial resistance via conformational changes triggered by external electrolytes and solvent. The interfacial resistance was characterized using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) using [Fe(CN)6]3-/4- as the redox probe. The effects of electrolytes, the concentration and type of electrolytes and temperature are investigated in more detail.",

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T1 - Synthesis and properties of polymer brushes bearing ionic liquid moieties

AU - Yu, Bo

AU - Zhou, Feng

AU - Hu, Haiyuan

AU - Wang, Chengwei

AU - Liu, Weimin

PY - 2007/12/1

Y1 - 2007/12/1

N2 - Poly(1-ethyl 3-(2-methacryloyloxy ethyl) imidazolium chloride) (PEMEIm-Cl) brushes were grafted onto Au surface via surface initiated atom transfer radical polymerization (ATRP). The swelling/collapsed behavior of the brushes was characterized by AFM in different electrolyte solutions. These 15 nm ultrathin polyelectrolyte brushes can be used to modulate the interfacial resistance via conformational changes triggered by external electrolytes and solvent. The interfacial resistance was characterized using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) using [Fe(CN)6]3-/4- as the redox probe. The effects of electrolytes, the concentration and type of electrolytes and temperature are investigated in more detail.

AB - Poly(1-ethyl 3-(2-methacryloyloxy ethyl) imidazolium chloride) (PEMEIm-Cl) brushes were grafted onto Au surface via surface initiated atom transfer radical polymerization (ATRP). The swelling/collapsed behavior of the brushes was characterized by AFM in different electrolyte solutions. These 15 nm ultrathin polyelectrolyte brushes can be used to modulate the interfacial resistance via conformational changes triggered by external electrolytes and solvent. The interfacial resistance was characterized using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) using [Fe(CN)6]3-/4- as the redox probe. The effects of electrolytes, the concentration and type of electrolytes and temperature are investigated in more detail.

KW - Electrochemical impedance spectroscopy

KW - Polymer brush

KW - Responsive surfaces

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U2 - 10.1016/j.electacta.2007.07.018

DO - 10.1016/j.electacta.2007.07.018

M3 - 文章

AN - SCOPUS:35148863123

SN - 0013-4686

VL - 53

SP - 487

EP - 494

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 2

ER -

Synthesis and properties of polymer brushes bearing ionic liquid moieties

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