[OH-].[Na+].[C:3]([NH:7][C:8]([CH3:15])([CH3:14])[CH2:9][S:10]([OH:13])(=[O:12])=[O:11])(=[O:6])[CH:4]=[CH2:5].C(N)(=O)C=C.CC(C(OOC(C)(C)C)=O)(C)C>O>[C:3]([NH2:7])(=[O:6])[CH:4]=[CH2:5].[C:3]([NH:7][C:8]([CH3:15])([CH3:14])[CH2:9][S:10]([OH:13])(=[O:11])=[O:12])(=[O:6])[CH:4]=[CH2:5]Borax (0.6 g.) and 50% aqueous sodium hydroxide (7.2 g.) were dissolved in 52.4 g. of distilled water. 2-acrylamido-2-methyl propyl sulfonic acid (2-AMPSA) (20.4 g.) and acrylamide (AM) (39.4 g.) were dissolved in the caustic solution while maintaining the temperature at <20° C. by cooling. The pH of the final solution was adjusted to 8.0; the solution was then combined with Tween 85 (30.0 g.) and Mentor 28 (50.0 g.). The reaction was conducted according to the procedure of Example 31. 0.5 ml of a 0.01% FAS solution and 0.1 ml of Lupersol 11 was used; polymerization was maintained at <68° C. by cooling. The product was a stable emulsion (5000 cps viscosity).
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