Vinyl Acetate → Butyl acrylate vinyl acetate

Participants

Reaction Conditions

Reaction Steps

A vinyl acetate-butyl acrylate copolymer was prepared utilizing the sulfonate product of Example 5 as the sole surfactant. A one liter resin kettle was charged with a solution of 31.7 grams of the sulfonate product of Example 5 in 281 grams of deionized water. The solution was heated to 80° C. under a nitrogen atmosphere. One gram of potassium persulfate (K2S2O8) was added to the solution followed by the slow addition of 50 milliliters of a mixture comprising 202 grams of vinyl acetate and 36 grams of butyl acrylate. The polymerization temperature was maintained at 75°-80° C. for 30 minutes after the addition of the 50 milliliter portion of the monomer mixture. The remainder of the monomer mixture was charged to the kettle over a 3-4 hour period while maintaining the polymerization temperature at between 70° C. and 75° C. The contents of the resin kettle were post stirred at 70° C. for 1 hour and then 10 grams of 2 percent formaldehyde sulfoxylate added to the kettle to complete the polymerization.

Provenance & Evidence