Ammonium → 5-Phenyl-2,4-pentadienoic acid

Participants

Reaction Conditions

Reaction Steps

5 parts of dodecanethiol and 3 parts of carbon tetrabromide are added to monomer components consisting of 400 parts of styrene, 90 parts of n-butyl acrylate, and 3 parts of acrylic acid, to give a liquid monomer mixture. Thirty parts of the liquid mixture is poured into 700 parts of ion-exchange water and dispersed well, and after addition of an aqueous ammonium persulfide solution, the mixture is heated to a liquid temperature of 72° C. The remaining 463 parts of the liquid monomer mixture is then added dropwise to the mixture above over 5 hours, to give a dispersion of the styrene-acrylic acid copolymer resin.

Provenance & Evidence