Thermogravimetric analysis, antioxidant

In a study on the thermal and UV ageing of two commercial polyfoxymethy-lene) (POM) samples, one of which was a copolymer (see related study discussed later under Section 4.3, thermogravimetric analysis (TGA)), used in car interior applications, involving both DSC and TGA, isothermal OIT measurements were made at several different temperatures [8]. One conclusion from this study was that "extrapolation of the OIT data from high temperatures (molten state) to ambient temperatures in the solid state does not reflect effective antioxidant performance at room temperature", and thus measurements close to the melting point are not appropriate for reliable lifetime estimations. 

Thermogravimetric analysis (Chapter 2), for example, has been used in studies of polymer degradation, activation energy, phase transitions, and also for the effect of antioxidants on polymer ageing and polymer lifetime studies. Coupling this technique with mass spectrometry (Chapter 3) enables further information to be obtained on the nature of polymer decomposition products, which accompany polymer weight changes. 

Thermal-oxidative Aging, see Aging, thermal-oxidative Thermal-oxidative Stabilization, see Antioxidants Thermogravimetric analysis 158 Thermoplastic elastomers 6... 

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