The analysis of high performance polymers, because of their very properties of thermal stability and insolubility, will always be a difficult task. This analysis is even further complicated by the presence of fillers and other reinforcing materials. This paper describes a relatively simple procedure of preliminary hydrolytic fusion followed by chemical work-up and gas chromatography that enables the analysis of these materials to be successfully achieved. This success was shown by the analysis of a series of filled polyphthalamide samples.
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