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Reference type: Journal
Authors: Tom LA, Gerard CL, Hutchison CM, Brooker AS
Article Title: Development of a novel molecularly imprinted polymer for the retention of 4,6-dimethyldibenzothiophene.
Publication date: 2012
Journal: Microchimica Acta
Volume: 176
Issue: (3)
Page numbers: 375-380.
DOI: 10.1007/s00604-011-0730-0

Abstract: Several molecularly imprinted polymers (MIPs) for the retention of 4,6-dimethyldibenzothiophene (4,6-DMDBT) were prepared. The first was a polymer prepared non-covalently with methacrylic acid and ethylene glycol dimethacrylate polymerized in the presence of 4,6-DMDBT. After extraction of 4,6-DMDBT, the selectivity of the imprinted polymer was evaluated by HPLC and compared to a non-imprinted control polymer prepared without 4,6-DMDBT. The imprinted polymer retained 4,6-DMDBT slightly longer than the control polymer. The second polymer was prepared using nickel (II)-methacryloylhistidinedihydrate monomer which was combined with 4,6-DMDBT, and polymerized with ethylene glycol dimethacrylate. This is a novel use of this monomer for retention of sulfur-containing organic compounds. Selectivity for 4,6-DMDBT was much greater in this polymer compared to the first, and retention in acetonitrile was more than three times greater on the imprinted polymer compared to a control polymer. Results indicate the potential use of this novel MIP for the removal of organosulfur compounds from fuel
Template and target information: 4,6-dimethyldibenzothiophene, 4,6-DMDBT
Author keywords: molecular imprinting, imprinted polymer, Desulfurization, Dimethyldibenzothiophene, organosulfur compounds


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