Hyper-cross-linked polystyrene networks (HPNs) were obtained from macroporous slightly cross-linked polystyrene by using inexpensive and commercial dichloroalkanes as external cross-linkers via a two-step Friedel-Crafts reaction. In this reaction, AlCl₃ or FeCl₃ was used as catalyst, and the highest Brunauer-Emmett-Teller (BET) surface area (S_BET) of the HPNs was amounted to 832.8 m²/g using a starting polymer with a S_BET of 19.5 m²/g. The results showed that physical properties such as surface area and swelling behaviors of the HPNs could be regulated by varying the strut length and structure of cross-linkers. The sorption performance of the HPNs for phenol was greatly improved due to both adsorption on the surface and absorption in the matrix through framework swelling. The equilibrium adsorption capacity of phenol on HPN-DCM-DCE reached 24.5 mg/g and 170.0 mg/g at the equilibrium concentration of 2 mg/L and 200 mg/L, respectively. The equilibrium isotherm and sorption kinetic studies indicated that the sorption behaviors could be well fitted with Freundlich isotherm equation and the pseudo-second-order rate equation.

超交联聚苯乙烯网络 (HPN) 是通过使用廉价和商业化的二氯烷烃作为外部交联剂，通过两步 Friedel-Crafts 反应从大孔微交联聚苯乙烯中获得的。在该反应中，使用 AlCl ₃或 FeCl ₃作为催化剂，使用具有S _BET的起始聚合物，HPNs的最高布鲁诺-埃米特-特勒 (BET) 表面积 ( S _BET ) 达到 832.8 m ² /g 19.5 m ²/G。结果表明，可以通过改变交联剂的支柱长度和结构来调节 HPN 的表面积和溶胀行为等物理性质。由于在表面吸附和通过骨架溶胀在基质中吸附，HPNs 对苯酚的吸附性能大大提高。苯酚在HPN-DCM-DCE上的平衡吸附量在2mg/L和200mg/L的平衡浓度下分别达到24.5mg/g和170.0mg/g。平衡等温线和吸附动力学研究表明吸附行为可以很好地拟合 Freundlich 等温线方程和伪二级速率方程。