Issue 43, 2015
From the journal:

Soft Matter

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

Harshita Kumari,*a   Sarah E. Armitage,b   Steven R. Kline,c   Krishna K. Damodaran,d   Stuart R. Kennedy, ORCID logo b   Jerry L. Atwood*e  and  Jonathan W. Steed*b  

* Corresponding authors

a James L. Winkle College of Pharmacy, University of Cincinnati, 3225 Eden Avenue, Cincinnati, OH, USA
E-mail: kumariha@ucmail.uc.edu

b Department of Chemistry, Durham University, South Road, Durham DH1 3LE, UK
E-mail: jon.steed@durham.ac.uk

c NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, USA

d Department of Chemistry, Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavík, Iceland

e Department of Chemistry, University of Missouri – Columbia, 601 South College Avenue, Columbia, MO 65211, USA

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.

Graphical abstract: Fluorous ‘ponytails’ lead to strong gelators showing thermally induced structure evolution

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Article information

DOI
https://doi.org/10.1039/C5SM01865J
Article type
Paper
Submitted
27 Jul 2015
Accepted
03 Sep 2015
First published
03 Sep 2015
This article is Open Access
Creative Commons BY license

Soft Matter, 2015,11, 8471-8478

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

H. Kumari, S. E. Armitage, S. R. Kline, K. K. Damodaran, S. R. Kennedy, J. L. Atwood and J. W. Steed, Soft Matter, 2015, 11, 8471 DOI: 10.1039/C5SM01865J

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