ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
A method for the measurement of residual isocyanate in flexible polyurethane foam by attenuated total reflectance Fourier-transform infrared spectroscopy is described. Residual isocyanate as a function of time was measured in freshly made foams of varying isocyanate index. The effect of relative humidity during storage on the decrease in isocyanate concentration was investigated. As expected, aging under humid conditions was found to decrease the isocyanate concentration faster than under dry conditions. However, even after long periods of time under high humidity, traces of bound isocyanate remained. The fate of the isocyanate is discussed.
Additional Material:
10 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1987.070340131
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