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Abstract: Molecularly imprinted polymer membranes were synthesized and used for solid-phase extn. of atrazine from dild. aq. solns. The membranes contg. artificial recognition sites for atrazine were prepd. by co-polymn. of methacrylic acid, tri(ethylene glycol) dimethacrylate, and oligourethaneacrylate in the presence of atrazine. This resulted in formation of the molecularly imprinted polymer in the form of thin, flexible, and mech. stable membranes. Extn. of template mols. lead to formation of sites in the polymeric network, which are complementary to atrazine in shape and arrangement of functional groups. Several org. solvents as well as different polymeric porogens were used to obtain membranes with high fluxes. Ref. polymeric membranes were prepd. with the same monomer compn. but in the absence of atrazine. The atrazine-imprinted membranes showed high affinity to atrazine together with the significantly stronger adsorption capability to this herbicide than to structurally similar compds. (simazine, prometryn, metribuzin).
Template and target information: atrazine