Preparation and Characterization of a Novel One-Component Polyurethane
A novel one-component polyurethane was synthesized by 2,4,6-trichlorophenol (TCP) as blocking agent for polymethylene polyphenyl isocyanate (PAPI). FTIR spectrum indicates that the NCO groups of the isocyanate molecule are blocked with TCP and the added catalyst should make the reaction faster than that of un-added catalyst. The one-component was characterized by 1H NMR and 13C NMR.
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
C. H. Lou et al., "Preparation and Characterization of a Novel One-Component Polyurethane", Advanced Materials Research, Vols. 236-238, pp. 2315-2318, 2011