The pyrolysis of a polyurethane obtained from tolylene 2,4‐diisocyanate and ethylene glycol was studied in nitrogen, air, and oxygen from the double aspect of structural change and color formation. The dissociation of the polymer into its components followed by further reactions liberates diisocyanate, the corresponding diamine, and the polypseudourea ether, as well as other degradation products. The color is attributed to the yellowing of TDI, the oxidation of the diamine, and the presence of the polypseudourea ether.
No takes yet. Share an insight, caveat, or question.
Beachell et al. (1963) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: