 The study investigated the effect of sulfonation on polymers made up of styrene, STY, glycidyl methacrylate, GMA, and divinal benzene, DVB, to determine how the material structure affects its ability to remove ammonia from wastewater. The results showed that the sulfonation reaction had a significant impact on the polymer's performance, with the most efficient polymer being one composed of STY, DVB, and sulfonic acid groups. This polymer had a greater surface area than other polymers tested, but its ion exchange capacity was lower. This article was authored by Leilani C. Deus, Carla Michelle Frodet de Silva, Maximiliano F. Martens, and others.