Die Morphologie von partiell-kristallinem PETP wurde mittels einer Ätztechnik und durch umgekehrte Gas-Chromatographie bei konstanter Temperatur untersucht. Durch Anwendung dieser zwei Techniken wurden gleiche Ergebnisse für teilkristalline, isotrope Proben gefunden, die nur von dem kristallinen Teil abhängen. Die umgekehrte Gas-Chromatographie bei konstanter Temperatur erlaubt eine Abschätzung der Orientierung der Makromolecüle, während die Ätztechnik für isotrope und anisotrope Proben das gleiche Verhalten zeigt.
The morphology of semicrystalline polymeric materials(PETP) was studied by an etching technique and by isothermal inverse gas-chromatography. Using these two techniques the same results for semicrystalline isotropic materials were obtained and these results wer found to depend only on the crystalline fraction. Isothermal inverse gas-chromatography permits an evaluation of the macromolecular orientation while the etching technique shows the same behaviour both for isotropic and anisotropic materials.
Poly (ethylene terephtalate): a comparison between inverse gas chromatography and rate of solubilization in phenol.
M Canetti;
1981
Abstract
The morphology of semicrystalline polymeric materials(PETP) was studied by an etching technique and by isothermal inverse gas-chromatography. Using these two techniques the same results for semicrystalline isotropic materials were obtained and these results wer found to depend only on the crystalline fraction. Isothermal inverse gas-chromatography permits an evaluation of the macromolecular orientation while the etching technique shows the same behaviour both for isotropic and anisotropic materials.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
