Direct observation of polyelectrolyte brushes under wet and dry conditions by atmospheric scanning electron microscopy

Takeshi Higuchi; Yuji Konyuba; Hidetoshi Nishiyama; Mitsuo Suga; Atsushi Takahara; Hiroshi Jinnai

doi:10.1093/jmicro/dfv357

Direct observation of polyelectrolyte brushes under wet and dry conditions by atmospheric scanning electron microscopy

Takeshi Higuchi, Yuji Konyuba, Hidetoshi Nishiyama, Mitsuo Suga, Atsushi Takahara, Hiroshi Jinnai

Department of Applied Molecular Chemistry

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

Polyelectrolyte brushes are polyelectrolyte polymers with one end fixed to a substrate. In this study, direct nano-scale visualization of polyelectrolyte brushes was carried out under 'aqueous conditions' by atmospheric scanning electron microscopy. The thickness of the polyelectrolyte brush layer was measured under both dry and aqueous conditions, experimentally confirming the swollen state of the brushes. These experimental findings qualitatively agreed with the results from previous neutron reflectivity experiments using similar polyelectrolyte brushes. Such direct visualization of polymer brushes in real space opens up a new route for better understanding their surface properties, such as friction, adhesion and wettability.

Original language	English
Pages (from-to)	139-144
Number of pages	6
Journal	Microscopy
Volume	65
Issue number	2
DOIs	https://doi.org/10.1093/jmicro/dfv357
Publication status	Published - Apr 1 2019

All Science Journal Classification (ASJC) codes

Structural Biology
Instrumentation
Radiology Nuclear Medicine and imaging

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10.1093/jmicro/dfv357

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Higuchi, T., Konyuba, Y., Nishiyama, H., Suga, M., Takahara, A., & Jinnai, H. (2019). Direct observation of polyelectrolyte brushes under wet and dry conditions by atmospheric scanning electron microscopy. Microscopy, 65(2), 139-144. https://doi.org/10.1093/jmicro/dfv357

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AU - Jinnai, Hiroshi

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