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

被引：56

作者：

Kazarian, SG

Brantley, NH

Eckert, CA

机构：

[1] Georgia Inst Technol, Sch Chem Engn, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Specialty Separat Ctr, Atlanta, GA 30332 USA

来源：

VIBRATIONAL SPECTROSCOPY | 1999年 / 19卷 / 02期

关键词：

infrared spectroscopy; FT-Raman; polymers; supercritical fluids; crystallization;

D O I：

10.1016/S0924-2031(98)00073-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

FT-IR and FT-Raman spectroscopy have been applied to elucidate the morphology and structure of poly(ethylene terephthalate) (PET) processed with supercritical CO2 (scCO(2)). Infrared and Raman spectra of PET samples show an increased degree of crystallinity after being subjected to scCO(2). FT-Raman spectroscopy has also been utilized to study the supercritical dyeing of PET samples with azo dyes. These results may aid optimization of 'solvent-free' processes for advanced processing of packaging materials and supercritical fluid dyeing of textiles. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：277 / 283

页数：7

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