SURFACE MODIFICATION OF POLY(VINYLIDENE FLUORIDE) FILMS BY CONTROLLED GRAFTING POLYMER BRUSHES

Yiwang Chen (), Dongmei Liu and Ning Zhang
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Yiwang Chen: School of Materials Science and Engineering, Nanchang University, Nanchang 330047, China;
Dongmei Liu: School of Materials Science and Engineering, Nanchang University, Nanchang 330047, China;
Ning Zhang: School of Materials Science and Engineering, Nanchang University, Nanchang 330047, China;

Surface Review and Letters (SRL), 2005, vol. 12, issue 05n06, 709-712

Abstract: Controlled grafting of well-defined polymer brushes on the poly(vinylidene fluoride) (PVDF) films was carried out by the surface-initiated Atom Transfer Radical polymerization (ATRP). Surface-initiators were immobilized on the PVDF films by surface hydroxylation and esterification of the surface-tethered hydroxyl groups with 2-bromoisobutyrate bromide. Water contact angles on PVDF films were reduced by surface grafting of poly(ethylene glycol) monomethacrylate (PEGMA) and methyl methacrylate (MMA). Kinetics study revealed a linear increase in the graft concentration of PMMA and PEGMA with the reaction time, indicating that the chain growth from the surface, was consistence with a "controlled" or "living" process.

Keywords: Poly(vinylidene fluoride); ATRP; surface hydroxylation; contact angle (search for similar items in EconPapers)
Date: 2005
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DOI: 10.1142/S0218625X05007736

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