Aqueous lubrication of poly(etheretherketone) via surface-initiated polymerization of electrolyte monomers

被引：24

作者：

Chouwatat, Patcharida ^{[1
]}

Hirai, Tomoyasu ^{[1
,2
]}

Higaki, Keiko ^{[1
,2
]}

Higaki, Yuji ^{[1
,2
]}

Sue, Hung-Jue ^{[3
]}

Takahara, Atsushi ^{[1
,2
]}

机构：

[1] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[2] Kyushu Univ, Inst Mat Chem & Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[3] Texas A&M Univ, Polymer Technol Ctr, Dept Mat Sci & Engn, College Stn, TX 77843 USA

来源：

POLYMER | 2017年 / 116卷

关键词：

PEEK; Polyelectrolyte brushes; Friction; Water lubrication; POLY(ETHER ETHER KETONE); TRANSFER RADICAL POLYMERIZATION; 2-METHACRYLOYLOXYETHYL PHOSPHORYLCHOLINE; POLYELECTROLYTE BRUSH; GRAFT-POLYMERIZATION; THIN-FILMS; PEEK FILM; WETTABILITY; FLUIDITY; BEHAVIOR;

D O I：

10.1016/j.polymer.2017.02.085

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(etheretherketone) (PEEK) substrate surface was modified with charged cationic poly(2-(methacryloyloxy) ethyltrimethylammonium chloride) (PMTAC) and anionic poly(3-sulfopropyl methacrylate potassium salt) (PSPMK) polymer brushes through surface-initiated radical polymerization triggered by UV light exposure of benzophenone groups in PEEK backbone as an initiator. After extensive UV light exposure, the PEEK surface was covered with grafted polyelectrolyte chains and exhibited swollen polyelectrolyte brushes with high roughness under water, indicating high graft density and wide molecular weight distributions of PMTAC and PSPMK brushes. The hydrated polyelectrolyte brushes on PEEK surface induce significant air bubble repellency in water. Thus, thickening of swollen polyelectrolyte brushes dramatically reduces the friction coefficient of PEEK surface under a wet condition. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：549 / 555

页数：7

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