Laser Flash Photolysis of a Methylene 4, 4'-Diphenyldiisocyanate (MDI) Based Polyurethane and Model Carbamates
Chemistry and Biochemistry
Mathematics and Natural Sciences
Transient species in the laser flash photolysis of solutions of methylene 4,4-diphenyldiisocyanate MDI based polyurethanes and small molecule models have been detected. One of the transient species, a substituted anilinyl radical, is not quenched by oxygen while a second transient is extinguished by the introduction of oxygen. Based on the spectral results, a plausible mechanism is offered for the primary photochemical reactions of MDI based polyurethanes.
Defense Technical Information Center
Hoyle, C. E.,
(1988). Laser Flash Photolysis of a Methylene 4, 4'-Diphenyldiisocyanate (MDI) Based Polyurethane and Model Carbamates. Defense Technical Information Center.
Available at: https://aquila.usm.edu/fac_pubs/21362