Identification of the ions produced by fast atom bombardment mass spectrometry in some polyesters and polyamides
Fast atom bombardment (FAB) mass spectrometry was applied to the analysis of two polyesters, poly(ethylene adipate) and poly(epsilon-caprolactone), and two polyamides, Nylon 6.6 and Nylon 6. The peaks present in the spectra of the crude polymers were identified as corresponding to protonated molecular ions of preformed cyclic oligomers and of low molecular weight compounds contained in the polymer samples; these species were desorbed intact from the glycerol matrix under FAB conditions. When the polymers investigated were accurately purified from low molecular weight compounds, no significant peaks were observed in their FAB mass spectra. Instead, the FAB mass spectra of the mixtures extracted from the polymers were found to be very similar to those obtained for crude polymers.
- Research Organization:
- Universita di Catania, Italy
- OSTI ID:
- 6336576
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:17; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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ATOMIC BEAM SOURCES
ATOMIC BEAMS
BEAMS
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
ESTERS
EXPERIMENTAL DATA
GEL PERMEATION CHROMATOGRAPHY
INFORMATION
LIQUID COLUMN CHROMATOGRAPHY
MASS SPECTRA
MASS SPECTROSCOPY
MATERIALS
NEUTRAL BEAM SOURCES
NUMERICAL DATA
NYLON
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYAMIDES
POLYESTERS
POLYMERS
QUALITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SPECTRA
SPECTROSCOPY
SYNTHETIC MATERIALS