Abstract
A number of destructive and non-destructive physical and chemical methods of analysis have been assessed for predicting the stability of cellulose triacetate based motion picture film. Films aged naturally and artificially have been examined, using thermal analysis (differential scanning calorimetry), absorption, fluorescence and high field nuclear magnetic resonance spectroscopic methods and the data interrelated to that obtained using a novel technique of microwave spectroscopy with the aid of a newly developed wave-guide. The data are discussed in relation to the ability of each technique to provide an early prediction of polymer stability during archival storage.
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