Synthesis and Surface Properties of Poly(methyl methacrylate)/Poly(ethylene glycol) Binary Brushes

✍ Scribed by Libang Feng; Guangxin Gu; Min Chen; Limin Wu

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 292 KB
• Volume: 292
• Category: Article
• ISSN: 1438-7492
• DOI: 10.1002/mame.200700042

✦ Synopsis

Abstract

A new kind of binary polymer brushes was synthesized from two immiscible polymers, PMMA and PEG, on GPS‐modified silicon wafers. Surface composition, layer thickness, coverage, chain density, wetting ability, morphology and protein adsorption of the binary brushes were investigated by XPS, ellipsometry, AFM and contact angle measurements. The results show that both PMMA and PEG were successfully grafted onto the surface. The surface coverage and the chain density of PMMA and PEG brushes can be controlled by modulating the reaction temperature and time. This kind of binary polymer brushes exhibits a distinct microphase‐separated structure and excellent protein‐preventing property.

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