Abstract
High crosslinked copolymers based on poly(ethylstyrene-co-divinylbenzene), bead shaped, have chlorinated, resulting in adsorbents with a high content of chlorine (45.0% Cl). The chlorination process of the copolymer beads (0.40–0.80 mm in diameter) was carried out in 1,2-dichloroethane in the presence of a Friedel–Crafts catalyst (AlCl3, FeCl3), at 5–40°C, yielding yellow beads without any cracks and good mechanical strength. The chlorination degree of the samples is high because each vinyl aromatic unit contains 1.8–2.2 chlorine atoms. The chlorinated copolymer samples were used to retain Cephalosporine C from standard solutions comparatively with commercial adsorbents (Amberlite XAD-4 Rohm, Haas Co.; SP-206/7, Mitsubishi Kasai Corp., Japan). © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 1579–1587, 1998
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