Effect of grafting density of poly(2-methacryloyloxyethyl phosphorylcholine) brush on the tribological properties

Motoyasu Kobayashi, Wang Zhe, Kazuhiko Ishihara, Atsushi Takahara

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

High-density polymer brush on silicon wafer was prepared by surface-initiated atom transfer radical polymerization ('grafting-from' method) of 2-methacryloyloxyethyl phosphorylcholine (MPC) using CuBr / 2,2'-bipyridyl complex in methanol at 300 K. Low-density poly(MPC) brush was prepared by 'grafting-to' method using an poly(MPC) end-functionalized with alkoxysilyl group. The surface of both poly(MPC) brush was very hydrophilic; water contact angle was below 5 degree. Dynamic friction tests were carried out by sliding a glass ball (φ = 10 mm) on the surface at a sliding velocity of 90 mm/min under loading of 0.49 N at 298 K. Friction coefficient of high-density poly(MPC) brush was much lower than that of low-density one in aqueous condition. In addition, great wear resistance was observed in a high-density polymer brush. These results indicate that high-density and super-hydrophilic polymer can act as efficient lubricant to reduce the friction coefficient.

元の言語英語
ホスト出版物のタイトルPolymer Preprints, Japan - 55th SPSJ Annual Meeting
ページ1222
ページ数1
55
エディション1
出版物ステータス出版済み - 2006
イベント55th SPSJ Annual Meeting - Nagoya, 日本
継続期間: 5 24 20065 26 2006

その他

その他55th SPSJ Annual Meeting
日本
Nagoya
期間5/24/065/26/06

Fingerprint

Brushes
Friction
Polymers
Atom transfer radical polymerization
Silicon wafers
Contact angle
Wear resistance
Lubricants
Methanol
Glass
Water

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Kobayashi, M., Zhe, W., Ishihara, K., & Takahara, A. (2006). Effect of grafting density of poly(2-methacryloyloxyethyl phosphorylcholine) brush on the tribological properties. : Polymer Preprints, Japan - 55th SPSJ Annual Meeting (1 版, 巻 55, pp. 1222)

Effect of grafting density of poly(2-methacryloyloxyethyl phosphorylcholine) brush on the tribological properties. / Kobayashi, Motoyasu; Zhe, Wang; Ishihara, Kazuhiko; Takahara, Atsushi.

Polymer Preprints, Japan - 55th SPSJ Annual Meeting. 巻 55 1. 編 2006. p. 1222.

研究成果: 著書/レポートタイプへの貢献会議での発言

Kobayashi, M, Zhe, W, Ishihara, K & Takahara, A 2006, Effect of grafting density of poly(2-methacryloyloxyethyl phosphorylcholine) brush on the tribological properties. : Polymer Preprints, Japan - 55th SPSJ Annual Meeting. 1 Edn, 巻. 55, pp. 1222, 55th SPSJ Annual Meeting, Nagoya, 日本, 5/24/06.
Kobayashi M, Zhe W, Ishihara K, Takahara A. Effect of grafting density of poly(2-methacryloyloxyethyl phosphorylcholine) brush on the tribological properties. : Polymer Preprints, Japan - 55th SPSJ Annual Meeting. 1 版 巻 55. 2006. p. 1222
Kobayashi, Motoyasu ; Zhe, Wang ; Ishihara, Kazuhiko ; Takahara, Atsushi. / Effect of grafting density of poly(2-methacryloyloxyethyl phosphorylcholine) brush on the tribological properties. Polymer Preprints, Japan - 55th SPSJ Annual Meeting. 巻 55 1. 版 2006. pp. 1222
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