Azobisisobutyronitrile → HCID 168686, compound

Participants

Reaction Steps

A starting solution of 45 g of ethylacrylate, 45 g of butylacrylate, 5 g of acrylic acid, 0.5 g of azo-bis-isobutyronitrile and 0.35 g of lauryl mercaptan was added in 5 portions to a stirred reaction kettle at a kettle temperature of 70° C. Each portion was only added after an exotherm had indicated that the previous portion had reacted. The reaction was continued over a period of three hours at a temperature between 80° and 105° C. with a solution of 442 g of ethylacrylate, 442 g of butylacrylate, 44 g of acrylic acid, 50 g of azo-bis-isobutyronitrile and 6.1 g of lauryl mercaptan. Because of the high viscosity of the product, stirring in the reaction vessel becomes difficult. The polymer material was removed from the reactor and heated without stirring for 2 hours at 120° C. The polymer material was rubbery with comonomer proportions of 47.6:47.6:4.8.

Provenance & Evidence