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Qualitative identification of fumaric Acid and itaconic Acid in emulsion polymers
F C Wang1, J G Green, B B Gerhart
1Analytical Sciences Laboratory, The Dow Chemical Company, Midland, Michigan 48667.
Abstract:
A pyrolysis gas chromatography (Py-GC) technique has been used for the qualitative analysis of fumaric acid and itaconic acid as low-level monomers polymerized with other major monomers in emulsion polymers. In order for fumaric acid and itaconic acid to be detected through pyrolysis, the acids are derivatized with primary amines such as methylamine and ethylamine to form a cyclic imide. The detection of derivatized fumaric acid and itaconic acid is accomplished by atomic emission detection (AED). The structures of the derivatization-pyrolysis products have been elucidated by mass spectrometry.
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