Characterization of degradation products of polyethylene oxide by pyrolysis mass spectrometry
โ Scribed by M.M. Fares; J. Hacaloglu; S. Suzer
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 342 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0014-3057
No coin nor oath required. For personal study only.
โฆ Synopsis
The techniques of direct and indirect (evolved gas analysis) pyrolysis MS are used to characterize the thermal degradation products of polyethylene oxide. Using direct pyrolysis MS technique the main degradation process is determined to be due to C~ and C~C scissions yielding fragments characteristic of the polymer. Evolved gas analysis indicates formation of small molecular stable compounds such as C2HโขOCzH 5, CH3CHO, CO,, CO and C2H 4.
๐ SIMILAR VOLUMES
The examination of soil which has been treated with trifluralin (TREFLANm a,a,a-trifluoro-2,6-dinitro-N,N-dipropyl-ptoluidine) has resulted in the identification of 28 degradation products. This paper presents the mass spectra of these products and a number of related compounds which were suspected
Differentiation of normal human cells has been accomplished by pyrolysis gas chromatography mass spectrometry. Normal cells from human kidney, spleen, liver and brain tissues have been pyrolyzed and the products chromatographically separated and characterized by mass spectrometry. Molecular pyrolysi
A mass spectrometric investigation has been performed on the gases evolved during the pyrolysis of natural and some synthetic rubbers over the temperature range 30-4500 It was found that variations in ion ratio with temperature reveal interesting structural information. The ion ratiotemperature prof