Applications of vibrational spectroscopy to characterize poly(ethylene terephthalate) processed with supercritical CO2

Authors
Kazarian, SG Brantley, NH Eckert, CA
Citation
Sg. Kazarian et al., Applications of vibrational spectroscopy to characterize poly(ethylene terephthalate) processed with supercritical CO2, VIB SPECTR, 19(2), 1999, pp. 277-283
Citations number
28
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
VIBRATIONAL SPECTROSCOPY
ISSN journal
09242031 → ACNP
Volume
19
Issue
2
Year of publication
1999
Pages
277 - 283
Database
ISI
SICI code
0924-2031(199904)19:2<277:AOVSTC>2.0.ZU;2-X
Abstract
FT-IR and FT-Raman spectroscopy have been applied to elucidate the morpholo gy and structure of poly(ethylene terephthalate) (PET) processed with super critical CO2 (scCO(2)). Infrared and Raman spectra of PET samples show an i ncreased degree of crystallinity after being subjected to scCO(2). FT-Raman spectroscopy has also been utilized to study the supercritical dyeing of P ET samples with azo dyes. These results may aid optimization of 'solvent-fr ee' processes for advanced processing of packaging materials and supercriti cal fluid dyeing of textiles. (C) 1999 Elsevier Science B.V. All rights res erved.