Abstract This work presents a new β-cyclodextrin based hydrophilic thin film molecularly imprinted membrane (TF-MIM), with selective di(2-ethylhexyl) phthalate (DEHP) removal ability. Firstly, glycidyl methacrylate-bonded β-cyclodextrin (GMA-β-CD) is synthesized as a new dual function special functional monomer. Then TF-MIMs are fabricated at a short time, by fast photo-grafting of the GMA-β-CD as functional monomer and methylene bisacrylamide as cross-linker onto the polyethersulfone membrane in the presence of DEHP as template in MeOH/H2O solution. The porosity and pore size of TF-MIMs are determined and characterized utilizing ATR-FTIR, FE-SEM and contact angle (CA) measurement. The decreasing of CAs of the TF-MIMs from 64° in the neat PES to 31.9° verify that the surface hydrophilicity improved significantly. The DEHP adsorption ability of TF-MIMs are evaluated. The imprinting factor of DEHP obtained in a filtration test is 2.6 and selectivity factors of DEHP with respect to dibutyl phthalate and dioctyl terephthalate are 3.5 and 4 respectively showing that TF-MIMs have good selective removal ability for DEHP.

中文翻译：

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具有选择性去除邻苯二甲酸二（2-乙基己基）酯能力的β​​-环糊精基亲水薄层分子印迹膜

摘要 这项工作提出了一种新的基于β-环糊精的亲水薄膜分子印迹膜（TF-MIM），具有选择性邻苯二甲酸二（2-乙基己基）酯（DEHP）去除能力。首先，合成了甲基丙烯酸缩水甘油酯键合的β-环糊精（GMA-β-CD）作为一种新型的双功能特殊功能单体。然后，在以 DEHP 为模板的 MeOH/H2O 溶液中，通过将 GMA-β-CD 作为功能单体和亚甲基双丙烯酰胺作为交联剂快速光接枝到聚醚砜膜上，在短时间内制备 TF-MIM。利用 ATR-FTIR、FE-SEM 和接触角 (CA) 测量确定和表征 TF-MIM 的孔隙率和孔径。TF-MIM 的 CA 从纯 PES 中的 64° 降低到 31.9°，证明表面亲水性显着提高。评估了 TF-MIM 的 DEHP 吸附能力。过滤试验中得到的DEHP印迹因子为2.6，DEHP对邻苯二甲酸二丁酯和对苯二甲酸二辛酯的选择性因子分别为3.5和4，表明TF-MIMs对DEHP具有良好的选择性去除能力。