| Abstract: | The copolymerization of n‐dodecyl poly(oxyethylene)600 maleate (DPM‐13) with 2‐acrylamido‐2‐methyl propane sulfonic acid (AMPS) has been studied in the range from 25 to 90 % DPM‐13 in the feed stock. The reactivity ratio has been determined for DPM‐13/AMPS copolymer. The copolymer compositions, utilized for determining the reactivity ratio, have been determined from nitrogen content and 1H nuclear magnetic resonance (NMR) analysis. The copolymer was characterized by IR and 1H‐NMR. Crosslinked poly(AMPS) and DPM‐13/AMPS copolymers were prepared in water in the presence of potassium persulfate as initiator, and 1,1‐trimethylolpropane trimethacrylate (TPT) as hexafunctional crosslinker. The percentage of TPT was varied from 0.4 to 2 wt% to study the effect of TPT content on the swelling properties of the prepared polymers. Copyright © 1999 John Wiley & Sons, Ltd. |
