Réaction #590865

Équation de réaction

hexamethylene diisocyanate

2-hydroxyethyl acrylate

hydroquinone

→

urethane acrylate

Conditions de réaction

Traitement

1. 1
   Autrereacted for 2 hours at 80° C
2. 2
   Autrereacted for 3 hours at 80° C.

Mode opératoire

1000 g of polyethylene glycol having a molecular weight of about 2,000 and 168 g (1 mole) of hexamethylene diisocyanate were placed in a reaction vessel and reacted for 2 hours at 80° C. Moreover, 116 g (1 mole) of 2-hydroxyethyl acrylate and 4.7 g of hydroquinone were added thereto and reacted for 3 hours at 80° C. while blowing in air to obtain a urethane acrylate (A-1) having acryloyl groups on both ends of a molecule thereof. The weight average molecular weight of the urethane acrylate (A-1) was 3,800.

Source