Fourier transform Raman spectroscopic studies of a polyimide curing reaction

Fourier transform (FT)-Raman spectroscopy was used to monitor the curing reaction of a polyimide bonding agent, the Ciba-Geigy Matrimid® system. Major Raman bands were assigned by comparison to spectra for small model molecules, by use of ab initio calculations, and by reference to previous literatu...

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Bibliographic Details
Published in:Analytica chimica acta 1994-07, Vol.293 (1), p.119-128
Main Authors: Aust, Jeffrey F., Higgins, Melinda K., Groner, Peter, Morgan, Stephen L., Myrick, Michael L.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical properties
Curing mechanism
Exact sciences and technology
Polyimide curing reaction
Polymer industry, paints, wood
Principal component analysis
Properties and testing
Raman spectroscopy
Technology of polymers
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Summary:Fourier transform (FT)-Raman spectroscopy was used to monitor the curing reaction of a polyimide bonding agent, the Ciba-Geigy Matrimid® system. Major Raman bands were assigned by comparison to spectra for small model molecules, by use of ab initio calculations, and by reference to previous literature. The set of FT-Raman spectra taken at various intervals during the curing process was modeled by principal component analysis (PCA). Cure percentage determined by differential scanning calorimetry was then regressed against scores on the first principal component for the different polymer samples. The PCA and regression results summarized significant trends in the FT-Raman spectra and led to a better understanding of the curing mechanism.
ISSN:0003-2670
1873-4324
DOI:10.1016/0003-2670(94)00100-6