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Fluorous ‘ponytails’ lead to strong gelators showing thermally induced structure evolution.

Kumari, Harshita and Armitage, Sarah E. and Kline, Steven R. and Damodaran, Krishna K. and Kennedy, Stuart R. and Atwood, Jerry L. and Steed, Jonathan W. (2015) 'Fluorous ‘ponytails’ lead to strong gelators showing thermally induced structure evolution.', Soft matter., 11 (43). pp. 8471-8478.

Abstract

Appending perfluoroalkyl substituents to bis(urea) gelators results in significantly decreased inter-chain 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 by detailed SANS measurements which indicate a surprising 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.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1039/C5SM01865J
Publisher statement:This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Date accepted:03 September 2015
Date deposited:04 September 2015
Date of first online publication:November 2015
Date first made open access:No date available

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