Thermal Reactions of Diisocyanate (MDI) with Phenols and Benzylalcohols: DSC Study and Synthesis of MDI Adducts

Homogeneous modification of sugarcane bagasse cellulose with succinic anhydride using a ionic liquid as reaction medium

“…Notably, the exothermic peak was asymmetric due to overlapping endothermic response from both unreacted cellulose and the reaction product. 34 The exothermic peak, which represents heat released from the product, was observed at a maximum temperature of 362°C for unmodified cellulose and 281°C for sample 5, respectively, which indicated again that a degradation of cellulose occurred during dissolution and succinoylation.…”

Calorimetric and rheological study of isocyanate–pyrolysis oil blends

“…Water reacts as well at a higher temperature. It can be seen that the exothermic peak seems to be asymmetric, possibly due to an overlapping endothermic response from both unreacted phenol compounds and the reaction products, i.e., boiling and melting phenomena 11. Pizzi et al9 showed that pMDI–water reaction occurs between 87 and 117°C, while this study revealed pMDI–water peaks at 121–136°C (Fig.…”

“…Zhuang and Steiner11 investigated pMDI–phenol mixtures. They observed that the presence of an electron‐withdrawing group in the phenol molecule retarded the thermal reaction and slowed it down.…”

Reactions of phenolic ester alcohol with aliphatic isocyanates?transcarbamoylation of phenolic to aliphatic urethane: A13C-NMR study

“…19a, 24 It has been reported that the DSC scans of several phenol-blocked urethanes, derived from MDI, show endothermic transitions due to deblocking reactions. 41 Anagnostou and Jaul 42 also reported the deblocking reactions of several blocked isocyanates of MDI using different blocking groups, such as caprolactam, MEKO, and benzotriazole, using DSC and IR spectroscopy. They also observed endotherms at temperatures ranging from 40 to 200°C depending on the blocking group.…”