Structures and Surface States of Polymer Brushes in Good Solvents: Effects of Surface Interactions

Yi-Xin Liu; Hong-Dong Zhang

doi:10.1007/s10118-018-2100-4

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Structures and Surface States of Polymer Brushes in Good Solvents: Effects of Surface Interactions

ARTICLE | Updated：2021-02-18

- Structures and Surface States of Polymer Brushes in Good Solvents: Effects of Surface Interactions
- Chinese Journal of Polymer Science Vol. 36, Issue 9, Pages: 1047-1054(2018)
- Affiliations：
  
  State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
- Author bio：
  
  lyx@fudan.edu.cn
- Funds：
- DOI：10.1007/s10118-018-2100-4
  CLC：
- Received：23 November 2017，
  
  Accepted：03 December 2017，
  
  Online First：28 February 2018，
  
  Published：2018-09
- Accepted：
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Yi-Xin Liu, Hong-Dong Zhang. Structures and Surface States of Polymer Brushes in Good Solvents: Effects of Surface Interactions[J]. Chinese Journal of Polymer Science, 2018, 36(9): 1047-1054.
DOI：

Yi-Xin Liu, Hong-Dong Zhang. Structures and Surface States of Polymer Brushes in Good Solvents: Effects of Surface Interactions[J]. Chinese Journal of Polymer Science, 2018, 36(9): 1047-1054. DOI： 10.1007/s10118-018-2100-4.

摘要

Abstract

The influence of the surface interaction on the mesoscopic structure of grafted polymers in good solvents has been examined. At high surface coverage

tethered polymers are in the brush state and the parabolic segment density profile is confirmed by self-consistent field theory (SCFT) calculations. It is found that this is a universal behavior for a whole range of surface interactions from complete repulsion to strong attraction. More interestingly

finite surface repulsion may lead to the maximum in the proximal layer of its segment density profile

which is significantly different from both the depletion layer of pure repulsion and the adsorbing layer of attraction. In addition to the brush state on both repulsive and attractive surfaces

three additional surface states were identified by analyzing the scaling behavior of the layer thickness of polymer brushes: the mushroom state on repulsive substrates

the dilute and the semidilute surface states on attractive substrates.

关键词

Keywords

references

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