Use of real-time FTIR to characterize kinetics of amine catalysts and to develop new grades for various polyurethane applications,including low emission catalysts

摘要

The use of in-situ Fourier Transform Infrared (FTIR) to follow PU reaction kinetics has been studied using a heated probe matching the PU material temperature.The results obtained show that,although not giving access to concentration of formed chemical bonds,the technique is a unique tool to assess subtle differences in catalysts behavior during actual PU formation,going beyond the currently used but restrictive characterization of catalysts in terms of gelling,blowing or trimerization grades.