We have developed a fast IR spectroscopy method for determining the concentrations of cycloaliphatic and aliphatic isocyanate groups in isophorone diisocyanate that react to form urethanes. It is based on the experimentally established fact that there is a difference between the frequencies of the stretching vibrations for the N–H bond in urethanes formed by cycloaliphatic and aliphatic isocyanate groups in isophorone diisocyanate, when the IR spectra are recorded for dilute solutions of the reaction mixture in carbon tetrachloride. The method can be used to determine the reactivity of isocyanate groups in different reactions involving isophorone diisocyanate.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
N. Bialas and H. Hocker, Macromol. Chem., 191, No. 5, 1843–1852 (1990).
K. Hatada, K. Ute, R.-I. Oka, and S. P. Pappas, J. Polym. Sci. A: Polym. Chem., 28, No. 11, 3019–3027 (1990).
R. Lomolder, F. Plogmann, and P. Speier, J. Coat. Technol., 69, No. 868, 51–58 (1997).
H. E. Stagg, Analyst, 71, No. 849, 557–559 (1946).
A. Weissberger, E. S. Proskauer, J. A. Riddick, and E. E. Toops, Organic Solvents [Russian translation], Inostr. Lit., Moscow (1958).
C. A. V. Werf, R. V. Heisler, and W. E. McEwen, J. Am. Chem. Soc., 76, No. 5, 1231–1235 (1954).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 82, No. 1, pp. 149–152, January–February, 2015.
Rights and permissions
About this article
Cite this article
Dzalmukhanova, A.S., Lodygina, V.P., Komratova, V.V. et al. IR Spectroscopy Method for Determining The Reactivity of Isocyanate Groups in Isophorone Diisocyanate Reactions. J Appl Spectrosc 82, 145–148 (2015). https://doi.org/10.1007/s10812-015-0077-0
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10812-015-0077-0