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Influence of the antimony catalyst remnants on the melt crystallization of PET
- Source :
- Journal of Applied Polymer Science. 48:1997-2001
- Publication Year :
- 1993
- Publisher :
- Wiley, 1993.
-
Abstract
- The nucleating activity of antimony catalyst remnants on the melt crystallization of poly(ethylene terephthalate) (PET) is proved through comparisons, for samples with Sb concentrations in the range 180-1850 ppm, of the crystallization behaviors before and after a complete extraction of the catalyst remnants. These comparisons are performed by analysis of the crystallization peaks of differential scanning calorimetry (DSC), by the study of the isothermal crystallization kinetics from X-ray diffraction experiments, and by optical microscopy observations of the size of the spherulites. The dependence of the crystallization temperature (Tc, as evaluated by the position of the DSC peak) on the Sb concentration, reported in the literature, is shown to be largely overestimated. In particular, it is found that the Tc of commercial samples are essentially unaffected by the presence of the standard concentrations of Sb catalyst remnants. © 1993 John Wiley & Sons, Inc.
- Subjects :
- Materials science
Polymers and Plastics
Kinetics
Analytical chemistry
Nucleation
Concentration effect
chemistry.chemical_element
Mineralogy
General Chemistry
Surfaces, Coatings and Films
law.invention
Catalysis
Differential scanning calorimetry
POLYETHYLENE TEREPHTHALATE
Optical microscope
Antimony
chemistry
law
Materials Chemistry
Crystallization
KINETICS
Subjects
Details
- ISSN :
- 10974628 and 00218995
- Volume :
- 48
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Polymer Science
- Accession number :
- edsair.doi.dedup.....16a3fdca1f60718c55f629c253218409