Macromolecular Design for Optical Resolution Membrane.

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  • AOKI Toshiki
    Faculty of Engineering, Niigata University, and Graduate School of Science and Technology, Niigata University
  • SHINOHARA Ken-ichi
    Faculty of Engineering, Niigata University, and Graduate School of Science and Technology, Niigata University
  • KANEKO Takashi
    Faculty of Engineering, Niigata University, and Graduate School of Science and Technology, Niigata University
  • OIKAWA Eizo
    Faculty of Engineering, Niigata University, and Graduate School of Science and Technology, Niigata University

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  • 光学分割膜の高分子設計
  • コウガク ブンカツ マク ノ コウブンシ セッケイ

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Abstract

Several new polymers for optical resolution membranes were synthesized and enantioselective permeabilities of the polymer membranes were examind for various racemates using four methods, that is, concentration-driven permeation (CP), pressure-driven permeation (ΔP), pervaporation (PV), and evapomeation (EV). (+) -Poly (1- (dimethyl (10-pinanyl) silyl) -1-propyne) ((+) -poly (DPSP)) membranes showed high enantioselective permeabilities in CP for various racemates and low permeation rates, which were improved by using PV or EV. (-) -Poly (2- (dimethyl (10-pinanyl) silyl). norbornadiene) had a higher permeability than (+) -poly (DPSP). Polymers having a chiral main chain showed poor enantioselective permeability. Highly and stably enantioselective permeations were observed through the blend membranes whose surface were modified by (-) -oligo- methyl (10-pinanyl) siloxane ((-) -OMPS). The graft copolymers with (-) -OMPS as the grafts are promising for a higher performance membrane.

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