Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33498
Title: Study of FTIR spectra and thermal analysis of polyurethane
Authors: Jiang, Z
Yuan, KJ
Li, SF
Chow, WK 
Keywords: In situ infrared spectrum
Polyester-polyurethane
Polyether-polyurethane
Issue Date: 2006
Publisher: 中國學術期刊(光盤版)電子雜誌社
Source: 光譜學與光譜分析 (Spectroscopy and spectral analysis), 2006, v. 26, no. 4, p. 624-628 How to cite?
Journal: 光譜學與光譜分析 (Spectroscopy and spectral analysis) 
Abstract: The thermal behavior of polyester-polyurethane and polyether-polyurethane in air atmosphere was investigated by using FTIR analysis in the temperature range from 20 to 400°C. The thermal degradation behaviors of polyester-polyurethane and polyether-polyurethane in different atmospheres were investigated by using thermogravimetry analysis (TG) in the temperature range from 20 to 700°C. The FTIR results together with the TG investigations showed that polyester-polyurethane has two degradation steps in air, but polyether-polyurethane has only one degradation step. The thermal analysis results also showed that the onset degradation temperature of polyether-polyurethane is lower than that of polyester-polyurethane, suggesting that the thermal stability of polyester-polyurethane is higher than polyether-polyurethane, and the onset degradation temperature of poly-urethane in air is lower than that in nitrogen, suggesting that the presence of oxygen affects significantly the break of the polymeric chains.
URI: http://hdl.handle.net/10397/33498
ISSN: 1000-0593
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