McLaren, SR orcid.org/0000-0002-1627-6058, Tate, DJ, Lozman, OR et al. (2 more authors) (2015) Stabilised columnar mesophases formed by 1:1 mixtures of hexaalkoxytriphenylenes with a hexaphenyltriphenylene-based polymer. Journal of Materials Chemistry C, 22. ISSN 2050-7534
Abstract
The synthesis is reported for a main chain polymer in which the repeat units are 2,3,6,7,10,11-hexaphenyltriphenylene moieties linked through flexible dodecyl chains. In compositions with a series of 2,3,6,7,10,11-hexakis(alkoxy)triphenylenes (HATn) this new polymer forms stable hexagonal columnar liquid crystal phases. These are investigated in detail using optical polarised microscopy (OPM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). In these mixtures, suppression of crystallisation and enhancement of the clearing temperatures leads to very wide liquid crystal ranges: much wider than those for the HATn materials on their own. For the longer chain HATn compounds (n = 12-16) a columnar rectangular phase is also observed. The enhancement of the liquid crystal phase range is attributed to stabilising complementary polytopic interactions between the planar aromatic moieties.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015, Royal Society of Chemistry. This is an author produced version of a paper published in Journal of Materials Chemistry C. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) > Organic Chemistry (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/I000623/1 EPSRC EP/I000623/1 EPSRC EP/I000623/1 EPSRC EP/I000623/1 EPSRC EP/I000623/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 24 Sep 2019 11:46 |
Last Modified: | 24 Sep 2019 11:46 |
Status: | Published |
Publisher: | Royal Society of Chemistry |
Identification Number: | 10.1039/C5TC00661A |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:86102 |