Preparation and characterization of molecularly imprinted polymer for selective adsorption of 4-chlorophenol molecules by physical selectivity method

Pasang, T. and Ranganathaiah, C. (2013) Preparation and characterization of molecularly imprinted polymer for selective adsorption of 4-chlorophenol molecules by physical selectivity method. Industrial and Engineering Chemistry Research, 52 (22). pp. 7445-7452.

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Official URL: http://doi.org/10.1021/ie400693y

Abstract

Molecular imprinted polymer (MIP) with methacrylate acid (MAA) as monomer and ethylene glycol dimethacrylate (EGDMA) as cross-linker in different molar ratios has been prepared. The free volume size and distribution have been derived from the measured positron lifetime spectra in MIP. The free volume size distribution observed clearly indicates the influence of the amount of cross-linker in the sample. Present results suggest that the optimum monomer cross-linker ratio is 1:5 for this MIP. Fourier tranform infrared (FTIR) results confirm complete extraction of the 4-chlorophenol template molecules (4-CP) from the MIP with the absence of stretching frequencies at 648 and 825 cm -1 for the C-Cl group. The free volume distribution analysis indicates that the percentage of accessible cavities to 4-CP molecules in this MIP is only 85% and less than those values reported in earlier studies.

Item Type: Article
Uncontrolled Keywords: Ethylene glycol dimethacrylate, Fourier transform infrared spectroscopy, Free volume, Free volume distribution, Molecular imprinted polymer (MIP), Molecularly Imprinted Polymer, Molecules, Monomers, Phenols, Positron lifetime spectra, Selective adsorption, Stretching frequency, Volume size distribution
Subjects: D Physical Science > Physics
Divisions: Department of > Physics
Depositing User: Arshiya Kousar
Date Deposited: 19 Oct 2019 07:07
Last Modified: 19 Oct 2019 07:07
URI: http://eprints.uni-mysore.ac.in/id/eprint/9158

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