| Summary: | Ethylene glycol dimethacrylate (EGDMA) is used as a crosslinker in poly(acrylonitrile (AN)-<i>co</i>-vinylbenzyl chloride (VBC)) to investigate the effect of long-chain crosslinker to the porosity of the terpolymer system. Poly(AN-<i>co</i>-EGDMA-<i>co</i>-VBC) is synthesized by using precipitation polymerization method and further hypercrosslinked by Friedel-Crafts reaction. FT-IR spectra of poly(AN-<i>co</i>-EGDMA-<i>co</i>-VBC) show that the absorption bands at ~1290 cm<sup>−1</sup> that are assigned to the C−Cl vibrations are almost disappeared in hypercrosslinked (HXL) poly(AN-<i>co</i>-EGDMA-<i>co</i>-VBC) polymers, confirming that the hypercrosslinking reaction is successful. SEM images show that the morphologies of the polymers are retained through the hypercrosslinking reactions. Brunauer−Emmett−Teller (BET) analysis shows that hypercrosslinked polymers had a specific surface area up to 59 m<sup>2</sup>·g<sup>−1</sup>. The preliminary performance of the terpolymer adsorbent to capture polar analyte is evaluated by adsorbing salicylic acid and mefenamic acid from aqueous solution in a batch system. The maximum adsorption capacity of salicylic acid and mefenamic acid were up to 416.7 mg·g<sup>−1</sup> and 625 mg·g<sup>−1</sup>, respectively, and the adsorption kinetic data obeyed pseudo-second-order rate equation.
|
|---|
