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Citation: LU Pei-Pei, WANG Bing, GUO Cong, YU Peng-Fei. Preparation of Molecular Imprinted Polymers with Hydrophilic Shells by Distillation-Precipitation Polymerization and Study on Their Adsorption[J]. Chinese Journal of Analytical Chemistry, ;2017, 45(1): 89-96. doi: 10.11895/j.issn.0253-3820.160569 shu

Preparation of Molecular Imprinted Polymers with Hydrophilic Shells by Distillation-Precipitation Polymerization and Study on Their Adsorption

State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China

Received Date: 28 July 2016
Revised Date: 20 October 2016

Molecular imprinted polymer cores (MIPs) were prepared through distillation-precipitation polymerization with methacrylic acid (MAA) as the functional monomer and paracetamol (PR) as the template molecule. Then, the hydrophilic shells were grafted successfully by free radical polymerization with acrylamide (AM) as the hydrophilic monomer. The influences of different shell cross-linking agents such as ethylene glycol dimethacrylate (EGDMA), trimethylolpropane triacrylate (TRIM), and N,N'-Methylenebisacrylamide (MBA) on the hydrophilic property were investigated. The resulting MIPs were characterized by various tests, including ultraviolet spectrometry (UV), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscope (SEM). The absorbing test and contact angle measurement were also carried out for the investigation of hydrophilic property of microspheres. The results showed that MBA was the best shell cross-linking agent of the microspheres, and the adsorption capacity and contact angle of this prepared microsphere could reach 120 μmol/g and 23.3°, respectively. Core-shell (CS)-MIPs provide a new thought for detection of PR in aqueous solution.
- Hydrophilic,
- Core-shell,
- Distillation-precipitation polymerization,
- Free radical polymerization,
- Molecular imprinted polymers,
- Paracetamol
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