Riccobono, Alessio, Lazzara, Giuseppe, Rogers, Sarah E. et al. (4 more authors) (2021) Synthesis and mesomorphism of related series of triphilic ionic liquid crystals based on 1,2,4-triazolium cations. JOURNAL OF MOLECULAR LIQUIDS. 114758. ISSN 0167-7322
Abstract
The synthesis, liquid crystal and conductivity properties of a series of 27 salts based on the 5-(4-(alkyloxy)phenyl)-1,2,4-triazol-4-ium cation bearing a perfluoroalkyl chain with triflate, tetrafluoroborate and bistriflimide anion are reported. The cations are regarded as triphilic on account of their three distinct regions – hydrocarbon, fluorocarbon and ionic. The mesophases were characterised by a combination of polarised optical microscopy, calorimetry and small-angle scattering experiments using both X-rays and neutrons, while thermal stability was probed using thermogravimetric analysis. The liquid crystal properties are found to be dependent on the anion and the length of the perfluorocarbon chain, which effects combine to determine aspects of the self-organisation in the mesophases. A strong dependence of conductivity on the anion is seen, which is in turn related to its charge density.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 Elsevier B.V. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. |
Keywords: | Impedance spectroscopy,Ionic liquid crystal,SANS,SAXS,Triphilic |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Depositing User: | Pure (York) |
Date Deposited: | 16 Dec 2020 11:20 |
Last Modified: | 16 Oct 2024 17:11 |
Published Version: | https://doi.org/10.1016/j.molliq.2020.114758 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1016/j.molliq.2020.114758 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:169090 |
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Description: Synthesis and mesomorphism of related series of triphilic ionic liquid crystals based on 1,2,4-triazolium cations
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