Chiral separation membranes from modified polysulfone having myrtenal-derived terpenoid side groups |
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Authors: | Masakazu Yoshikawa Kanako Murakoshi Kana Hanaoka Gilles P Robertson |
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Institution: | a Department of Polymer Science and Engineering, Kyoto Institute of Technology, Matsugasaki, Kyoto 606-8585, Japan b Institute of Chemical Process and Environmental Technology, National Research Council of Canada, Ottawa, Ont., Canada K1A 0R6 |
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Abstract: | Novel polymeric materials, having a chiral environment, were obtained by the reaction of lithiated polysulfone with chiral terpenoid myrtenal. The resulting polymers gave self-standing durable membranes. Molecularly imprinted membranes were prepared from the novel myrtenal-containing polysulfones by the presence of print molecules during the membrane preparation process. The d-isomer imprinted membrane showed d-isomer adsorption and diffusivity selectivity, and vice versa. As a result, the d-isomer imprinted membrane transported the d-isomer in preference to the l-isomer, and vice versa. The control non-imprinted membrane also showed permselectivity toward racemic glutamic acid mixtures. The expression of permselectivity for the molecularly imprinted membranes was synergistically due to adsorption and diffusivity selectivity. |
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Keywords: | Chiral separation Membrane Molecular imprinting Myrtenal Optical resolution Polysulfone Permselectivity Adsorption selectivity Diffusivity selectivity |
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