Abstract
The use of two-dimensional correlation techniques in interpretation of time dependent IR spectra has proven to be a powerful tool. Extension from external sinusoidal perturbations of the sample to systems with a limited number of spectra along the time axis has opened the door to use of correlation spectra to understand chemical reaction pathways. Two-dimensional correlation spectra have been used to understand the reaction between poly(vinyl alcohol) and palladium (II) chloride. This chemical system is widely used in the field of electroless plating of metals. The palladium (II) chloride and poly(vinyl alcohol) are dissolved, spread on the area to be plated and dried. The poly(vinyl alcohol) is used as a binder. Heating results in reduction to palladium metal which is the catalyst for the electroless plating process. The heating step also results in chemical changes in the poly(vinyl alcohol) structure which are readily observed by Infrared spectroscopy. A series of spectra taken during the heating step were examined by using the generalized two-dimensional correlation technique and the results will be discussed.
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