Synthesis and properties of polymer brushes bearing ionic liquid moieties

被引：43
作者：
Yu, Bo [1 ]
Zhou, Feng
Hu, Haiyuan
Wang, Chengwei
Liu, Weimin
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[2] Univ Cambridge, Melville Lab Polymer Sythesis, Cambridge CB2 1EW, England
[3] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
[4] Northwestern Normal Univ, Lanzhou 730000, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2007年 / 53卷 / 02期
基金：
中国国家自然科学基金;
关键词：
polymer brush; electrochemical impedance spectroscopy; responsive surfaces;
D O I：
10.1016/j.electacta.2007.07.018
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Poly(1-ethyl 3-(2-methacryloyloxy ethyl) imidazolium chloride) (PEMEIm-Cl) brushes were grafted onto An 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. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：487 / 494
页数：8
相关论文
共 39 条
[1]   CHARGE-TRANSFER AT PARTIALLY BLOCKED SURFACES - A MODEL FOR THE CASE OF MICROSCOPIC ACTIVE AND INACTIVE SITES [J].
AMATORE, C ;
SAVEANT, JM ;
TESSIER, D .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1983, 147 (1-2) :39-51
[2]   Solubilities and thermodynamic properties of gases in the ionic liquid 1-n-butyl-3-methylimidazolium hexafluorophosphate [J].
Anthony, JL ;
Maginn, EJ ;
Brennecke, JF .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (29) :7315-7320
[3]   Switching the properties of polyelectrolyte brushes via "Hydrophobic collapse" [J].
Azzaroni, O ;
Moya, S ;
Farhan, T ;
Brown, AA ;
Huck, WTS .
MACROMOLECULES, 2005, 38 (24) :10192-10199
[4]   Electrochemical impedance spectroscopy of polyelectrolyte multilayer modified electrodes [J].
Barreira, SVP ;
García-Morales, V ;
Pereira, CM ;
Manzanares, JA ;
Silva, F .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (46) :17973-17982
[5]   CO2 capture by a task-specific ionic liquid [J].
Bates, ED ;
Mayton, RD ;
Ntai, I ;
Davis, JH .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (06) :926-927
[6]   Tailoring the charge density of surface-attached polyelectrolyte brushes [J].
Biesalski, M ;
Rühe, J .
MACROMOLECULES, 2004, 37 (06) :2196-2202
[7]   High-pressure phase behavior of ionic liquid/CO2 systems [J].
Blanchard, LA ;
Gu, ZY ;
Brennecke, JF .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (12) :2437-2444
[8]   Hydrophobic, highly conductive ambient-temperature molten salts [J].
Bonhote, P ;
Dias, AP ;
Papageorgiou, N ;
Kalyanasundaram, K ;
Gratzel, M .
INORGANIC CHEMISTRY, 1996, 35 (05) :1168-1178
[9]   Insulating properties of self-assembled monolayers monitored by impedance spectroscopy [J].
Boubour, E ;
Lennox, RB .
LANGMUIR, 2000, 16 (09) :4222-4228
[10]   Why is CO2 so soluble in imidazolium-based ionic liquids? [J].
Cadena, C ;
Anthony, JL ;
Shah, JK ;
Morrow, TI ;
Brennecke, JF ;
Maginn, EJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (16) :5300-5308
1234