Rational Design of Rod-Like Liquid Crystals Exhibiting two Nematic Phases.

Richard Mandle; Stephen James Cowling; John William Goodby

doi:10.1002/chem.201702742

Rational Design of Rod-Like Liquid Crystals Exhibiting two Nematic Phases.

Richard Mandle, Stephen James Cowling, John William Goodby

Chemistry

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

Abstract

Recently a polar, rod-like liquid-crystalline material was reported to exhibit two distinct nematic mesophases (termed N and NX¬) separated by a weakly first order transition. In this work we present our initial studies into the structure-property relationships that underpin the occurrence of the lower temperature nematic phase, and in doing so report several new materials that exhibit this same transformation. In doing so we have prepared material with significantly enhanced temperature ranges, allowing us to perform a detailed study of both the upper- and lower- temperature nematic phases using small angle X-ray scattering. We observe a continuous change in d-spacing rather than a sharp change at the phase transition, a result consistent with a transition between two nematic phases whose structures are presumably degenerate.

Original language	English
Number of pages	10
Journal	Chemistry : A European Journal
Early online date	18 Sept 2017
DOIs	https://doi.org/10.1002/chem.201702742
Publication status	E-pub ahead of print - 18 Sept 2017

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Nanoscale Engineering of Dyes for Liquid Crystal Dyes in Device Applications
Saez, I. M., Cowling, S. J., Goodby, J. W. & Moore, J. N.
EPSRC
1/06/15 → 30/11/18
Project: Research project (funded) › Research

Dataset for: Rational Design of Rod-Like Liquid Crystals Exhibiting two Nematic Phases.
Mandle, R. (Creator), University of York, 30 Aug 2017
DOI: 10.15124/65c3c92a-8760-4e1f-8dc6-2b8d18dce00a
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title = "Rational Design of Rod-Like Liquid Crystals Exhibiting two Nematic Phases.",

abstract = "Recently a polar, rod-like liquid-crystalline material was reported to exhibit two distinct nematic mesophases (termed N and NX¬) separated by a weakly first order transition. In this work we present our initial studies into the structure-property relationships that underpin the occurrence of the lower temperature nematic phase, and in doing so report several new materials that exhibit this same transformation. In doing so we have prepared material with significantly enhanced temperature ranges, allowing us to perform a detailed study of both the upper- and lower- temperature nematic phases using small angle X-ray scattering. We observe a continuous change in d-spacing rather than a sharp change at the phase transition, a result consistent with a transition between two nematic phases whose structures are presumably degenerate.",

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AB - Recently a polar, rod-like liquid-crystalline material was reported to exhibit two distinct nematic mesophases (termed N and NX¬) separated by a weakly first order transition. In this work we present our initial studies into the structure-property relationships that underpin the occurrence of the lower temperature nematic phase, and in doing so report several new materials that exhibit this same transformation. In doing so we have prepared material with significantly enhanced temperature ranges, allowing us to perform a detailed study of both the upper- and lower- temperature nematic phases using small angle X-ray scattering. We observe a continuous change in d-spacing rather than a sharp change at the phase transition, a result consistent with a transition between two nematic phases whose structures are presumably degenerate.

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DO - 10.1002/chem.201702742

M3 - Article

SN - 0947-6539

JO - Chemistry : A European Journal

JF - Chemistry : A European Journal

ER -

Rational Design of Rod-Like Liquid Crystals Exhibiting two Nematic Phases.

Abstract

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Nanoscale Engineering of Dyes for Liquid Crystal Dyes in Device Applications

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Dataset for: Rational Design of Rod-Like Liquid Crystals Exhibiting two Nematic Phases.

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