Tribological behaviour of polymer brush prepared by the “grafting-from” method

Motoyasu Kobayashi, Zhe Wang, Yasuhiro Matsuda, Masataka Kaido, Atsushi Suzuki, Atsushi Takahara

研究成果: Chapter in Book/Report/Conference proceedingChapter

12 被引用数 (Scopus)

抄録

This article describes the tribological properties of well-defined highdensity polymer brushes prepared by the “grafting-from” method based on surface-initiated living radical polymerization. The authors have demonstrated here a water-lubrication system using hydrophilic polymer brushes consisting of 2,3-dihydroxypropyl methacrylate and 2-methacryloyloxyethyl phosphorylcholine (MPC). Macro- and microscopic frictional properties were carried out by a ball-on-plate type tribotester and an AFM cantilever attached with a colloidal sphere, respectively. Friction coefficients and adhesion forces of brush surfaces depend on the solvent quality. For example, the friction coefficient of poly(MPC) brush was reduced to be 0.02 under the highly humid atmosphere because water molecules adsorbed into the brush surfaces acted as a lubricant. Furthermore, high-density polymer brushes showed the low friction coefficient even after 100 reciprocating friction test, which clearly indicates an excellent wear resistance of brush film.

本文言語英語
ホスト出版物のタイトルPolymer Tribology
出版社Imperial College Press
ページ582-602
ページ数21
ISBN(電子版)9781848162044
ISBN(印刷版)9781848162020
DOI
出版ステータス出版済み - 1 1 2009

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Materials Science(all)

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