Switching water droplet adhesion using responsive polymer brushes

Xinjie Liu; Qian Ye; Bo Yu; Yongmin Liang; Weimin Liu; Feng Zhou

doi:10.1021/la101909e

Switching water droplet adhesion using responsive polymer brushes

Xinjie Liu, Qian Ye, Bo Yu, Yongmin Liang, Weimin Liu, Feng Zhou

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

116 Scopus citations

Abstract

Two stimuli-responsive polymers, poly(N-isopropylacrylamide) (PNIPAM) and poly(dimethylamino) ethyl methacrylate (PDMAEMA), were grafted from initiator-modified anodized alumina substrates with irregular micro/nanoscale surface topography. The resulting polymer-coated surfaces exhibited highly unusual wettability properties, as spherical water/acid/alkali/salt droplets could be reversibly switched between pinned states and rolling states due to the changes of temperature, pH, and electrolytes. The key to this effect is the combination of a mixed monolayer which provides initiator points for brush growth as well as a permanently hydrophobic substrate and a surface roughness.

Original language	English
Pages (from-to)	12377-12382
Number of pages	6
Journal	Langmuir
Volume	26
Issue number	14
DOIs	https://doi.org/10.1021/la101909e
State	Published - 20 Jul 2010
Externally published	Yes

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10.1021/la101909e

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title = "Switching water droplet adhesion using responsive polymer brushes",

abstract = "Two stimuli-responsive polymers, poly(N-isopropylacrylamide) (PNIPAM) and poly(dimethylamino) ethyl methacrylate (PDMAEMA), were grafted from initiator-modified anodized alumina substrates with irregular micro/nanoscale surface topography. The resulting polymer-coated surfaces exhibited highly unusual wettability properties, as spherical water/acid/alkali/salt droplets could be reversibly switched between pinned states and rolling states due to the changes of temperature, pH, and electrolytes. The key to this effect is the combination of a mixed monolayer which provides initiator points for brush growth as well as a permanently hydrophobic substrate and a surface roughness.",

author = "Xinjie Liu and Qian Ye and Bo Yu and Yongmin Liang and Weimin Liu and Feng Zhou",

year = "2010",

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T1 - Switching water droplet adhesion using responsive polymer brushes

AU - Liu, Xinjie

AU - Ye, Qian

AU - Yu, Bo

AU - Liang, Yongmin

AU - Liu, Weimin

AU - Zhou, Feng

PY - 2010/7/20

Y1 - 2010/7/20

N2 - Two stimuli-responsive polymers, poly(N-isopropylacrylamide) (PNIPAM) and poly(dimethylamino) ethyl methacrylate (PDMAEMA), were grafted from initiator-modified anodized alumina substrates with irregular micro/nanoscale surface topography. The resulting polymer-coated surfaces exhibited highly unusual wettability properties, as spherical water/acid/alkali/salt droplets could be reversibly switched between pinned states and rolling states due to the changes of temperature, pH, and electrolytes. The key to this effect is the combination of a mixed monolayer which provides initiator points for brush growth as well as a permanently hydrophobic substrate and a surface roughness.

AB - Two stimuli-responsive polymers, poly(N-isopropylacrylamide) (PNIPAM) and poly(dimethylamino) ethyl methacrylate (PDMAEMA), were grafted from initiator-modified anodized alumina substrates with irregular micro/nanoscale surface topography. The resulting polymer-coated surfaces exhibited highly unusual wettability properties, as spherical water/acid/alkali/salt droplets could be reversibly switched between pinned states and rolling states due to the changes of temperature, pH, and electrolytes. The key to this effect is the combination of a mixed monolayer which provides initiator points for brush growth as well as a permanently hydrophobic substrate and a surface roughness.

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DO - 10.1021/la101909e

M3 - 文章

C2 - 20557059

AN - SCOPUS:77956713120

SN - 0743-7463

VL - 26

SP - 12377

EP - 12382

JO - Langmuir

JF - Langmuir

IS - 14

ER -

Switching water droplet adhesion using responsive polymer brushes

Abstract

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