Styrene → Styrene N-phenylmaleimide acrylonitrile

Participants

Reaction Conditions

Reaction Steps

In a reactor which had been replaced with nitrogen, pure water (120 parts) and potassium persulfate (0.3 part) were charged and heated to 65° C. while stirring. Then, a mixed monomer solution of acrylonitrile (25 parts), N-phenylmaleimide (25 parts), styrene (50 parts) and tert.-dodecylmercaptan (0.3 part) and an aqueous solution of emulsifier (30 parts) containing sodium laurylsulfate (2 parts) were continuously added over 4 hours each. Then, the polymerization system was heated to 70° C. and aged for 3 hours to complete the polymerization to obtain a latex of acrylo-nitrile-N-phenylmaleimide-styrene copolymer.

Provenance & Evidence