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A novel hydrophilic adsorbent was synthesized by introducing a sulfoethylbetaine functional group to a methacrylate base resin. The physical properties of the adsorbent were measured by NMR and IR spectroscopy and acid–base titration. The results indicate that (1) the positive and negative charges of the adsorbent are in balance when a purified sulfobetaine reagent is used, (2) the amount of water...
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