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Chiral molecular imprinting in liquid-crystalline network⋆

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Abstract.

A cholesteric imprinted elastomer was obtained by cross-linking a nematic side-chain polysiloxane around a chiral template. The template was first linked to some functionalised groups of the polymer via hydrogen-bound interactions, then was removed by washing. The sample was macroscopically oriented during the synthesis; so, both a molecular chirality and a supramolecular phase chirality were topologically imprinted inside the network. Batch rebinding experiments, performed in the presence of the template or of the other enantiomer, showed that the imprinted polymer has a pronounced stereo-selectivity towards the template enantiomer. The rebinding capacity appeared to be greater than an unimprinted mesogenic network as well as than an imprinted non mesogenic one.

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Authors and Affiliations

  1. Laboratoire Interactions Moléculaires et Réactivité Chimique et Photochimique, UMR CNRS 5623, Université Paul Sabatier, 118 route de Narbonne, 31062, Toulouse, France

    J. -D. Marty & M. Mauzac

  2. Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université Paul Sabatier, 118 route de Narbonne, 31062, Toulouse, France

    H. Gornitzka

Authors
  1. J. -D. Marty
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  2. H. Gornitzka
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  3. M. Mauzac
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Correspondence to M. Mauzac.

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Marty, J.D., Gornitzka, H. & Mauzac, M. Chiral molecular imprinting in liquid-crystalline network⋆. Eur. Phys. J. E 17, 515–520 (2005). https://doi.org/10.1140/epje/i2004-10156-3

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  • DOI: https://doi.org/10.1140/epje/i2004-10156-3

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