Morphologische Charakterisierung von Polyathylen-terephtalatfasern mittels Gas Chromatographie.

The inverse gas-chromatography performed in isotherm at 100 °C on polyethyleneterephthalate allows to work over the Tg-temperature and consequently the probe can penetrate into the whole polymetric material. The technique is suitable to show the morphologial differences among polyethyleneterephthalate fibers. The gaschromatographic and r~Sntgenographic characterization of commercial fibers and of fibers which have been treated in laboratory allows to put forward a hypothesis of the structural evolution and its influences on the dyeability.