Azobisisobutyronitrile → HCID 168686, compound

Participants

Reaction Steps

A starting solution of 45g of ethylacrylate, 45g of butylacrylate, 5g of acrylic acid, 0.5g of azo-bis-isobutyronitrile and 0.35g 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 442g of ethylacrylate, 442g of butylacrylate, 44g of acrylic acid, 50g of azo-bis-isobutyronitrile and 6.1g 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