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Fluorous 'Ponytails' Lead to Strong Gelators Showing Thermally Induced Structure Evolution

Published

Author(s)

Harshita Kumari, Sarah E. Armitage, Steven R. Kline, Krishna K. Damodaran, Stuart R. Kennedy, Jerry L. Atwood, Jonathan W. Steed

Abstract

Appending perfluoroalkyl substituents to bis(urea) gelators results in significantly decreased interchain interactions with markedly thinner fibres and hence more cross-linked and more transparent gels with potential applications in the crystallisation of fluorinated pharmaceuticals. Gel structure has been probed be detailed SANS measurements which indicate a surprise structure evolution on thermal cycling, not seen for hydrocarbon analogues. The SANS data are complemented by the single crystal X-ray structure of one fluorinated gelator.
Citation
Soft Matter
Volume
11
Issue
43

Keywords

gelators, small-angle scattering, fluorinated materials, x-ray crystallography, thermoreversible, microscopy

Citation

Kumari, H. , Armitage, S. , Kline, S. , Damodaran, K. , Kennedy, S. , Atwood, J. and Steed, J. (2015), Fluorous 'Ponytails' Lead to Strong Gelators Showing Thermally Induced Structure Evolution, Soft Matter, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=919074 (Accessed June 23, 2024)

Issues

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Created September 2, 2015, Updated October 12, 2021