Surface properties of block and graft polystyrene–polydimethylsiloxane copolymers

✍ Scribed by Ningjing Wu; Likan Huang; Anna Zheng; Huining Xiao

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 97 KB
• Volume: 99
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.22978

✦ Synopsis

Abstract

The surface compositions of a series of polystyrene‐b‐polydimethylsiloxane (PS‐b‐PDMS) and polystyrene‐g‐polydimethylsiloxane (PS‐g‐PDMS) copolymers were investigated using ATR‐FTIR and XPS technique. The results showed that enrichment of PDMS soft segments occurred on the surface of the block copolymers as well as on that of graft copolymers. And the magnitude order of the enrichment was as follows: PS‐b‐PDMS > PS‐g‐PDMS, which was attributed to the facilitating of the movement of the PDMS segments in PS‐b‐PDMS copolymer. Meanwhile, the solvent type and the contact medium had influence on the accumulation of PDMS on the surfaces. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci, 2006