Plasma reactions of self-assembled monolayers to model oxygen atom effects on polymers

✍ Scribed by Fiona M. Elms; Graeme A. George

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 312 KB
• Volume: 9
• Category: Article
• ISSN: 1042-7147
• DOI: 10.1002/(sici)1099-1581(199801)9:1<31::aid-pat731>3.0.co;2-a

✦ Synopsis

The plasma treatment of self-assembled monolayers of octadecyl mercaptan on gold substrates has been investigated as a model for oxygen atom effects on polymers. Both O 2 and H 2 O low pressure gas plasmas have been used. Xray photoelectron spectroscopy has revealed that the two plasma treatments differ from each other in the extent of oxidation and etch rate with O 2 being the more aggressive plasma. The results have confirmed that the plasma modification of organic surfaces involves a balance between surface oxidation and surface etching. The welldefined structure of the monolayer enables quantitation of these atom-substrate reactions.