Sulfuric Acid → Sodium styrenesulfonate 2-(amino)ethylmethacrylate

Participants

Reaction Conditions

Reaction Steps

A solution of 35 g of sodium styrenesulfonate and 14 g of 35% 2-(amino)ethylmethacrylate.HC1 solution in 200 ml of water was prepared. The pH was adjusted to 3.5 using 1N sulfuric acid, and 0.1 g disodium ethylenediamine tetraacetate was added to the above solution. The solution was then N2 sparged for 30 minutes and heated to 65° C. 3 g of 4,4'-azobis(4-cyanovaleric acid) were then added, and the solution maintained at 65° C. for 6 hours. The reactants were poured into 1 liter of acetone, the acetone was decanted off, and methanol added. This mixture was allowed to stand overnight, followed by filtration and methanol-washing. Vacuum oven drying gave 40 g of a 11% 2-(amino)ethyl methacrylate/sodium styrenesulfonate copolymer, a white solid.

Provenance & Evidence