Melting behavior and phase diagram of isomeric diisocyanates |
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| Authors: | R. G. Ferrillo A. H. Granzow |
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| Affiliation: | (1) Chemical Research Division, American Cyanamid Company, 1937 West Main Street, P.O. Box 60, 06904-0060 Stamford, CT, USA |
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| Abstract: | Differential scanning calorimetry (DSC), thermogravimetry (TG), thermomicroscopy, and FTIR/thermomicroscopy have been used to study the thermal properties of two novel diisocyanates, 1,4-bis(1-isocyanato-1-methylethyl)benzene (P) and its isomer, 1,3-bis(1-isocyanato-1-methylethyl)benzene (M). Properties measured include the heat of fusion, melting point, volatility profile, and phase behavior. The variation of the melt behavior of (P)/(M) mixtures with composition has also been studied.
Zusammenfassung Mittels DSC, TG, Thermomikroskopie und FTIR/Thermomikroskopie wurden die thermischen Eigenschaften von 1,4-Bis(1-isocyanato-1-methylethyl)benzol (P) und scines isomers 1,3-Bis(1-isocyanato-1-methylethyl)benzol (M), zweier neuartiger Diisocyanat, untersucht. Zu den ermittelten Eigenschaften gehören Schmelzwärme, Schmelzpunkt, Verdampfungsprofil und Phasenverhalten. Die Veränderung des Schmelzverhaltens von (P)/(M)-Gemischen in Abhängigkeit von der Zusammensetzung wurde ebenfalls untersucht.
The authors wish to thank Dr. John A. Reffner and Dr. Norman B. Colthup for their technical assistance in microscopy and infrared spectroscopy. |
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