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Applications of Diffuse Reflectance FT-IR to Pigment Photodecomposition in Paint

Volume 36, Number 2 (April 1982) Page 155-157

Chase, D.B.; Amey, R.L.; Holtje, W.G.


Diffuse reflectance FT-IR spectroscopy is used to obtain infrared spectra of paints directly on paper panels. The binder contribution to the spectrum can be effectively eliminated by spectral subtraction and the spectra of photodecomposition products are obtained. Comparison with reference spectra allows the determination of the photodecomposition mechanism.