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Original Articles

Size Exclusion Chromatography and Mass Spectrometry of Photographic Bases in Cellulose Nitrate Degradation

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Pages 30-35 | Received 29 Apr 1994, Published online: 21 Jul 2016
 

Abstract

The degradation mechanisms of cellulose nitrate were investigated using mass spectrometry and size exclusion chromatography. After extraction with dichloromethane and analysis by coupling gas chromatography and mass spectrometry, two plasticizers were found: camphor and triphenylphosphate. A reaction product between nitrogen dioxide and triphenylphosphate was observed. The most important results contain the analysis of degraded and undegraded cellulose nitrate bases, by size exclusion chromatography and Fourier transform infra-red spectroscopy: cleavage of the polymer chain is seen to be the first step of the degradation.

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