Principal component analysis of FT-IR spectra for cationic photopolymerization of mixtures of two monomers

Principal component analysis (PCA) is used to analyze real-time FT-IR spectral data for cationic photopolymerizations of tri(ethylene glycol) methyl vinyl ether (TEGMVE), 3,4-epoxycyclohexylmethyl-3′,4′-epoxycyclohexane carboxylate (ECH) and their mixtures. PCA performed on different parts of the very large data set is able to extract information on subtle effects occurring in the polymerization reactions. Many of these effects are not readily …