Abstract
As-spun poly(ethylene terephthalate) filaments, subjected to mechanical and thermal treatments have been studied. Structural peculiarities investigated by the methods of thermo-mechanical analysis (TMA), differential scanning calorimetry (DSC) and wide-angle X-ray scattering (WAXS) are presented. The influence of simultaneously applied thermal and mechanical treatments on the structural changes of the studied samples is discussed. It was shown that the structures obtained could be semicrystalline or entirely amorphous depending on the mechanical treatment.
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