Polymer brush lubrication of the silicon nitride–steel contact: a colloidal force microscopy study
Polymer brush lubrication of the silicon nitride–steel contact: a colloidal force microscopy study
A greener lubrication solution for the steel–silicon nitride hybrid contact is proposed. The utilisation of surface-initiated (SI) activators-regenerated-by-electron-transfer (ARGET) atom-transfer radical polymerisation (ATRP) is employed to produce an oleophilic polymer brush which is based on methyl methacrylate. The current study presents the synthesis and characterisation of poly methyl methacrylate brushes. X-ray photoelectron spectroscopy, contact angle, gel permeation chromatography and atomic force microscopy were used to characterise the initiators and brushes. The lubricating effects of the polymer brushes under dry and swollen states were elucidated by lateral force microscopy with a steel colloid with a normal load in the nanoscale range. By testing in water and in poly α-olefin (PAO) this work shows that the frictional response of surface initiated polymers is highly dependent on the interaction between polymer brushes and fluid.
42667-42676
Watson, Simon
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Dennington, Simon
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Wang, Ling
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Nie, Mengyan
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Hinder, Steve
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Stokes, Keith
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Watson, Simon
f6b4a815-b3d7-46f0-b103-66ead4de52dc
Dennington, Simon
6a329a55-8c10-4515-8920-d8f40f302221
Wang, Ling
c50767b1-7474-4094-9b06-4fe64e9fe362
Nie, Mengyan
a8613738-d74a-40fb-8881-08069fb0a34b
Hinder, Steve
4b75e806-b49c-4eb8-9a92-2ae8bcc37572
Stokes, Keith
5fb4e7f7-2f7e-4e6e-a045-6d7690626695
Watson, Simon, Dennington, Simon, Wang, Ling, Nie, Mengyan, Hinder, Steve and Stokes, Keith
(2017)
Polymer brush lubrication of the silicon nitride–steel contact: a colloidal force microscopy study.
RSC Advances, 68, .
(doi:10.1039/C7RA08897C).
Abstract
A greener lubrication solution for the steel–silicon nitride hybrid contact is proposed. The utilisation of surface-initiated (SI) activators-regenerated-by-electron-transfer (ARGET) atom-transfer radical polymerisation (ATRP) is employed to produce an oleophilic polymer brush which is based on methyl methacrylate. The current study presents the synthesis and characterisation of poly methyl methacrylate brushes. X-ray photoelectron spectroscopy, contact angle, gel permeation chromatography and atomic force microscopy were used to characterise the initiators and brushes. The lubricating effects of the polymer brushes under dry and swollen states were elucidated by lateral force microscopy with a steel colloid with a normal load in the nanoscale range. By testing in water and in poly α-olefin (PAO) this work shows that the frictional response of surface initiated polymers is highly dependent on the interaction between polymer brushes and fluid.
Text
c7ra08897c
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Accepted/In Press date: 28 August 2017
e-pub ahead of print date: 4 September 2017
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Local EPrints ID: 414603
URI: http://eprints.soton.ac.uk/id/eprint/414603
ISSN: 2046-2069
PURE UUID: 66687d02-82ae-4ca9-8adb-8a1ac133a021
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Date deposited: 04 Oct 2017 16:30
Last modified: 16 Mar 2024 03:24
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Author:
Simon Watson
Author:
Mengyan Nie
Author:
Steve Hinder
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