Reactions of N,N^′-bis(2-hydroxyethyl)oxalamide with Ethylene Carbonate and Use of the Obtained Products as Components of Polyurethanes Foams

Figure 4

MALDI ToF spectrum of reaction product of BHEOA : EC 1 : 6 in the presence of 0.06 mole K₂CO₃/mole at 160^∘C.