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

abstract

• 2017 Elsevier Ltd 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.

authors

• Sue, Hung-Jue

published proceedings

• POLYMER

author list (cited authors)

• Chouwatat, P., Hirai, T., Higaki, K., Higaki, Y., Sue, H., & Takahara, A.

citation count

• 20

complete list of authors

• Chouwatat, Patcharida||Hirai, Tomoyasu||Higaki, Keiko||Higaki, Yuji||Sue, Hung-Jue||Takahara, Atsushi

publication date

• January 2017

publisher

• Elsevier  Publisher

published in

• POLYMER  Journal

keywords

• Friction
• PEEK
• Polyelectrolyte Brushes
• Water Lubrication

Digital Object Identifier (DOI)

• 10.1016/j.polymer.2017.02.085

start page

• 549

end page

• 555

volume

• 116

URL

• http://dx.doi.org/10.1016/j.polymer.2017.02.085