pH-Sensitive Wettability Induced by Topological and Chemical Transition on the Self Assembled Surface of Block Copolymer

Zhi Geng; Song Guan; He-ming Jiang; Long-cheng Gao; Zhi-wen Liu; Lei Jiang

doi:10.1007/s10118-014-1376-2

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pH-Sensitive Wettability Induced by Topological and Chemical Transition on the Self Assembled Surface of Block Copolymer

Updated：2021-06-21

- pH-Sensitive Wettability Induced by Topological and Chemical Transition on the Self Assembled Surface of Block Copolymer
- pH-Sensitive Wettability Induced by Topological and Chemical Transition on the Self Assembled Surface of Block Copolymer
- Chinese Journal of Polymer Science 2014年32卷第1期页码：92-97
- Affiliations：
  
  a.Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, BeiHang University, Beijing 100191, China
  b.Agilent Technologies, Beijing 100102, China
  c.Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Author bio：
  
  **Long-cheng Gao (高龙成), E-mail: lcgao@buaa.edu.cn
- Funds：
  
  National Natural Science Foundation of China(21204002);Specialized Research Fund for the Doctoral Program of Higher Education(20111102120050);Program for New Century Excellent Talents in Universities (2010) and the Fundamental Research Funds for the Central Universities.
- DOI：10.1007/s10118-014-1376-2
  中图分类号：
- 收稿：2013-03-12，
  
  修回：2013-04-12，
  
  录用：2013-04-19，
  
  纸质出版：2014-01
- Accepted：
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Zhi Geng, Song Guan, He-ming Jiang, 等. pH-Sensitive Wettability Induced by Topological and Chemical Transition on the Self Assembled Surface of Block Copolymer[J]. Chinese Journal of Polymer Science, 2014,32(1):92-97.

Zhi Geng, Song Guan, He-ming Jiang, et al. pH-Sensitive Wettability Induced by Topological and Chemical Transition on the Self Assembled Surface of Block Copolymer[J]. Chinese Journal of Polymer Science, 2014, 32(1): 92-97.
Zhi Geng, Song Guan, He-ming Jiang, 等. pH-Sensitive Wettability Induced by Topological and Chemical Transition on the Self Assembled Surface of Block Copolymer[J]. Chinese Journal of Polymer Science, 2014,32(1):92-97. DOI： 10.1007/s10118-014-1376-2.

Zhi Geng, Song Guan, He-ming Jiang, et al. pH-Sensitive Wettability Induced by Topological and Chemical Transition on the Self Assembled Surface of Block Copolymer[J]. Chinese Journal of Polymer Science, 2014, 32(1): 92-97. DOI： 10.1007/s10118-014-1376-2.

摘要

Abstract

pH-sensitive wettability of polystyrene-

-poly(4-vinylpyridine) (PS-

-P4VP) self assembled films

exhibiting superoleophobicity under water and hydrophilicity at low pH value

and oleophobicity under water and hydrophobicity at neutral condition

has been realized. The wettability properties resulted from the surface topological and chemical transition

which were confirmed by

in situ

AFM measurements under water at different pH. At low pH

P4VP chains

which were confined in the hexagonal-packed nanodomains

got protonated into a swollen state

while at high pH

P4VP chains were deprotonated into a collapsed state. The reversible protonation/deprotonation procedure on the molecular scale leads to surface topological and chemical transition

thereby pH-sensitive wettability.

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