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Reference type: Journal
Authors: Cowieson D, Piletska E, Moczko E, Piletsky S
Article Title: Grafting of molecularly imprinted polymer to porous polyethylene filtration membranes by plasma polymerization.
Publication date: 2013
Journal: Analytical and Bioanalytical Chemistry
Volume: 405
Issue: (20)
Page numbers: 6489-6496.
DOI: 10.1007/s00216-013-7087-7

Abstract: An application of plasma-induced grafting of polyethylene membranes with a thin layer of molecularly imprinted polymer (MIP) was presented. High-density polyethylene (HDPE) membranes, "Vyon," were used as a substrate for plasma grafting modification. The herbicide atrazine, one of the most popular targets of the molecular imprinting, was chosen as a template. The parameters of the plasma treatment were optimized in order to achieve a good balance between polymerization and ablation processes. Modified HDPE membranes were characterized, and the presence of the grafted polymeric layer was confirmed based on the observed weight gain, pore size measurements, and infrared spectrometry. Since there was no significant change in the porosity of the modified membranes, it was assumed that only a thin layer of the polymer was introduced on the surface. The experiments on the re-binding of the template atrazine to the membranes modified with MIP and blank polymers were performed. HDPE membranes which were grafted with polymer using continuous plasma polymerization demonstrated the best result which was expressed in an imprinted factor equal to 3, suggesting that molecular imprinting was successfully achieved
Template and target information: atrazine
Author keywords: HDPE membranes, MIPs, atrazine, Simazine, plasma


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