Ethyl Acetate → Urethane acrylate

Participants

Reaction Steps

Next, to a 100-mL round-bottom flask, 8.00 g of the polyester polyol, 2.15 g of methacryloyloxyethyl isocyanate, and 10.0 g of ethyl acetate were charged, and a reaction was conducted under stirring for six hours. The reaction mixture was filtered through a 0.2-μm membrane filter to remove the catalyst. An ethyl acetate solution of a target urethane acrylate with an NCO conversion rate of 95% was obtained. The residual ratio of the catalyst in the ethyl acetate solution was below the detection limit (5 ppm).

Provenance & Evidence