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Synthesis and surface properties of polystyrene-graft-poly(ethylene glycol) copolymers

✍ Scribed by Li-Bang Feng; Shu-Xue Zhou; Bo You; Li-Min Wu

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
479 KB
Volume
103
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

Polystyrene‐graft‐poly(ethylene glycol) copolymers (PS‐g‐PEG) were successfully synthesized using the “grafting‐through” method. The graft copolymers and the surface properties of their coats were characterized by1H‐NMR, gel permeation chromatography (GPC), differential scanning calorimetry (DSC), transmission electron microscopy (TEM), X‐ray photoelectron spectroscopy (XPS), static contact angle measurement, and atomic force microscopy (AFM). Both DSC and TEM indicated that the graft copolymers had a microphase separated structure. AFM showed the microphase separated structure also occurred at the coat surface, especially at high PEG content, which could also be indirectly confirmed by the XPS and contact angle results. The formation mechanism of the microphase separated structure was discussed. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 1458–1465, 2007

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