Polymer monitoring with mid-IR fibers

James A. de Haseth

doi:10.1117/12.166279

31 December 1993 Polymer monitoring with mid-IR fibers

James A. de Haseth

Proceedings Volume 2069, Optical Methods for Chemical Process Control; (1993) https://doi.org/10.1117/12.166279
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

Polymeric materials, specifically polyurethanes, have been investigated with the use of mid- infrared transmitting fibers. The fibers are used as internal reflection elements for attenuated total reflectance (ATR) spectrometry. Fourier transform infrared (FT-IR) spectrometers were used to collect the data. Spectra were collected at rates of three spectra per second to 5 seconds per spectrum. The spectral bandpass of the systems was from approximately 5500 cm^-1 to 850 cm^-1. Not only was the reaction chemistry monitored, but chemical morphological changes were recorded as well. Water slabstock polyurethane foams were studied as were reaction injection molded (RIM) polyurethanes.

Citation Download Citation

James A. de Haseth "Polymer monitoring with mid-IR fibers", Proc. SPIE 2069, Optical Methods for Chemical Process Control, (31 December 1993); https://doi.org/10.1117/12.166279

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