Article Dans Une Revue Chemistry - A European Journal Année : 2025

The Unusual Mesophases and Properties Exhibited by a Family of Glycosteroids

Fahima Ali-Rachedi
Nuno Xavier
Xiaoyang Yue
Stéphane Chambert
Feng Liu
  • Fonction : Auteur
Laurence Abbott
John Moore
Xiangbing Zeng
  • Fonction : Auteur
Stephen Cowling
John Goodby
  • Fonction : Auteur

Résumé

Abstract In this article we describe research on the synthesis and characterization of a family of “Janus” amphiphiles composed of disaccharide head groups and alkaloid units joined together via a methylene linker, and bearing a lateral aliphatic chain of varying length. The condensed phases formed by self‐organization of the products as a function of temperature were characterized by differential scanning calorimetry, thermal polarized light microscopy, and small angle X‐ray scattering, allied with computational modelling and simulations. Structural studies on heating specimens from the solid showed that some homologues exhibited lamellar, columnar and bicontinuous mesophases, whereas the same homologues revealed different phase sequences on cooling from the amorphous liquid. We explore these unusual results, which are revealed via supercooling.

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Chimie
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Dates et versions

hal-04924095 , version 1 (31-01-2025)

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Citer

Fahima Ali-Rachedi, Nuno Xavier, Xiaoyang Yue, Stéphane Chambert, Feng Liu, et al.. The Unusual Mesophases and Properties Exhibited by a Family of Glycosteroids. Chemistry - A European Journal, 2025, ⟨10.1002/chem.202403678⟩. ⟨hal-04924095⟩
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