The positive SIMS spectrum of poly(methyl methacrylate) (PMMA) has been obtained with a mass resolution in excess of 8000 and all the components assigned up to m/z 200 based on accurate mass measurements. Aspects of the interpretation of the spectrum, previously based on quadrupole SIMS data from a
Quantitative Study of Methyl Methacrylate-Poly(Ethylene Glycol) Methacrylate Copolymer Films using High Mass Resolution ToF-SIMS
✍ Scribed by Briggs, D.; Davies, M. C.
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 486 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0142-2421
No coin nor oath required. For personal study only.
✦ Synopsis
A previous XPS and low mass resolution (quadrupole) SIMS study of methyl methacrylate-poly(ethylene glycol) methacrylate random copolymers indicated (by XPS) a surface composition close to that of the bulk, however the trends in SIMS intensity ratios for peaks chosen to represent the individual monomers showed departures from linearity that were not understood. High mass resolution time-of-Ñight (ToF) SIMS data has shed light on the earlier results and, as a result, linear correlations have been established. In addition it has been possible to study high mass fragments derived from the poly(ethylene glycol) side chain.
📜 SIMILAR VOLUMES