Azobisisobutyronitrile → Styrene acrylic acid copolymer

Participants

Reaction Conditions

Reaction Steps

432 g of propylene glycol monomethyl ether acetate and 13 g of azobisisobutyronitrile were added in a five-neck reaction container having an inside volume of 1 l and the mixture was heated to 80° C. while blowing nitrogen gas into the container. Then, a mixed solution of 86.3 g of styrene, 11.8 g of acrylic acid and 10.0 g of an EO-modified (meth)acrylate of paracumylphenol was added dropwise to the mixture over 2 hours. 6.5 g of azoisobutyronitrile was added to the mixture 30 minutes after the addition was finished, and the resulting mixture was heated further for 5 hours to obtain a styrene/acrylic acid copolymer. The obtained styrene/acrylic acid copolymer had a weight average molecular weight of 3000.

Provenance & Evidence