Pentaerythritol → HCID 86761498, compound

Participants

Reaction Steps

To 5000 g (0.31 mol) of dried macrotetrol (e.g., polycaprolactone, MW 16.000 g/mol, pentaerythritol initiated), 193.8 g (1.25 mol) of isocyanato ethylmethacrylate IEM (Karenz Moi) was added dropwise at 110° C. during 0.5 hour. The reaction was carried out at 110° C. until absorption by an isocyanate group at a wavelength of 2250 cm−1 in the infrared absorption spectrum was no longer observed in order to obtain an urethane tetramethacrylate.

Provenance & Evidence