Azobisisobutyronitrile → HCID 168686, compound

Participants

Reaction Conditions

Reaction Steps

Polymerization was initiated with a solution of 21.7 g of ethyl acrylate, 50 g of butyl acrylate, 3 g of acrylic acid, 2 g of azo-bis-isobutyronitrile and 0.2 g of lauryl mercaptan in a reactor by slow heating, starting at 25° C. The polymerization started vigorously at 55° C. The main part of the polymerization was carried out between 100° and 120° C. by a slow addition of 250 g of the same monomer mixture over a period of two hours with external waterbath cooling. Since stirring becomes difficult at this stage, the material was removed from the reactor and heated for two additional hours at 120° C. The polymer material was highly viscous with comonomer proportions of 67:28:5.

Provenance & Evidence