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Proceedings Paper

Polyurethane monitoring by mid-infrared fiber Fourier transform spectrometry
Author(s): James A. de Haseth; Jennifer E. Andrews
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Paper Abstract

Chalcogenide fibers that transmit radiation in the mid-infrared region have been coupled to a Fourier transform infrared spectrometer. The fibers are used to measure attenuated total reflectance spectra of samples that are remote, or do not lend themselves to conventional sampling methods. The samples used in this study are polyurethane foams and spectra are collected while the foams are forming. The reaction intermediates can be monitored, as well as the reaction kinetics. Spectra can be collected rapidly; faster than one spectrum per second, however, the reaction rates in this study do not require temporal resolutions of faster than 10 seconds. The collected spectra are subjected to factor analysis to identify the reactants, intermediates and products.

Paper Details

Date Published: 1 March 1992
PDF: 2 pages
Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); doi: 10.1117/12.56438
Show Author Affiliations
James A. de Haseth, Univ. of Georgia (United States)
Jennifer E. Andrews, Univ. of Georgia (United States)


Published in SPIE Proceedings Vol. 1575:
8th Intl Conf on Fourier Transform Spectroscopy

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