The Unusual Mesophases and Properties Exhibited by a Family of Glycosteroids

Fahima Ali-Rachedi; Nuno M. Xavier; Xiaoyang Yue; Stéphane Chambert; Feng Liu; Laurence C. Abbott; John N. Moore; Xiangbing Zeng; Stephen J. Cowling; Yves Queneau; John W. Goodby

doi:10.1002/chem.202403678

The Unusual Mesophases and Properties Exhibited by a Family of Glycosteroids

Fahima Ali-Rachedi, Nuno M. Xavier, Xiaoyang Yue, Stéphane Chambert, Feng Liu, Laurence C. Abbott, John N. Moore, Xiangbing Zeng^*, Stephen J. Cowling^*, Yves Queneau^*, John W. Goodby^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	e202403678
Number of pages	17
Journal	Chemistry - A European Journal
Volume	31
Issue number	11
Early online date	31 Jan 2025
DOIs	https://doi.org/10.1002/chem.202403678
Publication status	Published - 20 Feb 2025

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Chemistry A European J - 2025 - Ali‐Rachedi - The Unusual Mesophases and Properties Exhibited by a Family of Glycosteroids
© 2025 The Author(s).
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AU - Liu, Feng

AU - Abbott, Laurence C.

AU - Moore, John N.

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The Unusual Mesophases and Properties Exhibited by a Family of Glycosteroids

Abstract

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Nanoscale Engineering of Dyes for Liquid Crystal Dyes in Device Applications

Core Capability

Liquid crystals at various wavelengths of light

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The Unusual Mesophases and Properties Exhibited by a Family of Glycosteroids

Abstract

Bibliographical note

Access to Document

Other files and links

Projects

Nanoscale Engineering of Dyes for Liquid Crystal Dyes in Device Applications

Core Capability

Liquid crystals at various wavelengths of light

Cite this