Integration of core-edge spectroscopy methods for the study of polymers
Conference
·
OSTI ID:468774
- Dow Chemical, Freeport, TX (United States)
In a scanning transmission electron microscope (STEM), electron energy loss spectroscopy (EELS) can be used to determine the nature of polymer phases at very high spatial resolution based on chemical composition or spectroscopic differences. Although the core edge fingerprint of many polymers is characteristic, radiation damage, limited spectral resolution, and magnetic fields can severely limit confidence in the data. Data is compared from several core edge techniques for the carbon 1s of poly (ethylene terephthalate). Agreement between the techniques is very good, with differences mainly coming from different spectral resolution. Although the STEM-EELS data is of lower spectral resolution, this comparison demonstrates that at low dose it can give the correct fingerprint.
- OSTI ID:
- 468774
- Report Number(s):
- CONF-960877--
- Country of Publication:
- United States
- Language:
- English
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