An ESCA study of the surface ozonation of polystyrene film

✍ Scribed by Peeling, James ;Jazzar, Mohammad S. ;Clark, David T.

• Book ID: 105333943
• Publisher: John Wiley and Sons
• Year: 1982
• Weight: 536 KB
• Volume: 20
• Category: Article
• ISSN: 0360-6376
• DOI: 10.1002/pol.1982.170200713

✦ Synopsis

Abstract

Polystyrene film was treated with 0.27 mol % ozone in oxygen at room temperature. Changes in the surface were monitored by ESCA. Reaction occurred uniformly in at least the outermost 60 Å of the film. Reaction was rapid, giving a surface composition that corresponded to C~1.8~O after about 8 h, with no apparent yellowing or embrittlement of the polymer. Ether, ketone, and carboxyl groups were formed at uniform, but not equal, rates in the outer 60 Å of the polymer. With short reaction times the less highly oxidized groups were the main oxidation product, but after about 4 h the highly oxidized groups predominated. The aromatic rings underwent reaction as indicated by the rapid disappearance of the C~1__s__~ shake‐up satellites on ozonation.