Frictional properties of hydrophilic polymer brushes under wet condition

Motoyasu Kobayashi; Yasuhiro Matsuda; Zhe Wang; Atsushi Takahara; Naoya Torikai; Masataka Kaido; Atsushi Suzuki; Kazuhiko Ishihara

Frictional properties of hydrophilic polymer brushes under wet condition

Motoyasu Kobayashi, Yasuhiro Matsuda, Zhe Wang, Atsushi Takahara, Naoya Torikai, Masataka Kaido, Atsushi Suzuki, Kazuhiko Ishihara

Department of Applied Molecular Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The hydrophilic polymer brushes were prepared by surface-initiated ATRP of 2-methacryloyloxyethyl phosphorylcholine (MPC) and 2-(dimethylamino)ethyl methacrylate (DMAEMA) on the initiator-immobilized silicon wafer. Poly(DMAEMA) brush was treated with methyl iodide to give a cationic polymer brush. Water contact angles of the cationic brush and poly(MPC) brush were 39° and 5°, respectively. Frictional properties of these polyelectrolyte brushes were characterized by sliding a glass ball probe on the brush surfaces in air and water under the load of 0.49 N at a sliding rate of 90 mm/min. Friction coefficients of polymer brushes in water and humid air were lower than that in dry air. Further low friction coefficient was observed by sliding a glass ball immobilized with poly(MPC) brush on the surface of poly(MPC)-immobilized silicon wafer under humid air condition.

Original language	English
Title of host publication	55th SPSJ Symposium on Macromolecules
Pages	4336-4337
Number of pages	2
Volume	55
Edition	2
Publication status	Published - Dec 1 2006
Event	55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan Duration: Sept 20 2006 → Sept 22 2006

Other

Other	55th Society of Polymer Science Japan Symposium on Macromolecules
Country/Territory	Japan
City	Toyama
Period	9/20/06 → 9/22/06

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

@inproceedings{0275e048039d4cd3adfb06b25bdc3630,

title = "Frictional properties of hydrophilic polymer brushes under wet condition",

abstract = "The hydrophilic polymer brushes were prepared by surface-initiated ATRP of 2-methacryloyloxyethyl phosphorylcholine (MPC) and 2-(dimethylamino)ethyl methacrylate (DMAEMA) on the initiator-immobilized silicon wafer. Poly(DMAEMA) brush was treated with methyl iodide to give a cationic polymer brush. Water contact angles of the cationic brush and poly(MPC) brush were 39° and 5°, respectively. Frictional properties of these polyelectrolyte brushes were characterized by sliding a glass ball probe on the brush surfaces in air and water under the load of 0.49 N at a sliding rate of 90 mm/min. Friction coefficients of polymer brushes in water and humid air were lower than that in dry air. Further low friction coefficient was observed by sliding a glass ball immobilized with poly(MPC) brush on the surface of poly(MPC)-immobilized silicon wafer under humid air condition.",

author = "Motoyasu Kobayashi and Yasuhiro Matsuda and Zhe Wang and Atsushi Takahara and Naoya Torikai and Masataka Kaido and Atsushi Suzuki and Kazuhiko Ishihara",

year = "2006",

month = dec,

day = "1",

language = "English",

volume = "55",

pages = "4336--4337",

booktitle = "55th SPSJ Symposium on Macromolecules",

edition = "2",

note = "55th Society of Polymer Science Japan Symposium on Macromolecules ; Conference date: 20-09-2006 Through 22-09-2006",

}

TY - GEN

T1 - Frictional properties of hydrophilic polymer brushes under wet condition

AU - Kobayashi, Motoyasu

AU - Matsuda, Yasuhiro

AU - Wang, Zhe

AU - Takahara, Atsushi

AU - Torikai, Naoya

AU - Kaido, Masataka

AU - Suzuki, Atsushi

AU - Ishihara, Kazuhiko

PY - 2006/12/1

Y1 - 2006/12/1

N2 - The hydrophilic polymer brushes were prepared by surface-initiated ATRP of 2-methacryloyloxyethyl phosphorylcholine (MPC) and 2-(dimethylamino)ethyl methacrylate (DMAEMA) on the initiator-immobilized silicon wafer. Poly(DMAEMA) brush was treated with methyl iodide to give a cationic polymer brush. Water contact angles of the cationic brush and poly(MPC) brush were 39° and 5°, respectively. Frictional properties of these polyelectrolyte brushes were characterized by sliding a glass ball probe on the brush surfaces in air and water under the load of 0.49 N at a sliding rate of 90 mm/min. Friction coefficients of polymer brushes in water and humid air were lower than that in dry air. Further low friction coefficient was observed by sliding a glass ball immobilized with poly(MPC) brush on the surface of poly(MPC)-immobilized silicon wafer under humid air condition.

AB - The hydrophilic polymer brushes were prepared by surface-initiated ATRP of 2-methacryloyloxyethyl phosphorylcholine (MPC) and 2-(dimethylamino)ethyl methacrylate (DMAEMA) on the initiator-immobilized silicon wafer. Poly(DMAEMA) brush was treated with methyl iodide to give a cationic polymer brush. Water contact angles of the cationic brush and poly(MPC) brush were 39° and 5°, respectively. Frictional properties of these polyelectrolyte brushes were characterized by sliding a glass ball probe on the brush surfaces in air and water under the load of 0.49 N at a sliding rate of 90 mm/min. Friction coefficients of polymer brushes in water and humid air were lower than that in dry air. Further low friction coefficient was observed by sliding a glass ball immobilized with poly(MPC) brush on the surface of poly(MPC)-immobilized silicon wafer under humid air condition.

UR - http://www.scopus.com/inward/record.url?scp=33846171558&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846171558&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33846171558

VL - 55

SP - 4336

EP - 4337

BT - 55th SPSJ Symposium on Macromolecules

T2 - 55th Society of Polymer Science Japan Symposium on Macromolecules

Y2 - 20 September 2006 through 22 September 2006

ER -

Frictional properties of hydrophilic polymer brushes under wet condition

Abstract

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All Science Journal Classification (ASJC) codes

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