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Invited Article

What makes a liquid crystal? The effect of free volume on soft matter

, , , &
Pages 593-622 | Received 12 Mar 2015, Published online: 23 Jun 2015
 

Abstract

In this article, we probe the formation of liquid crystal and soft crystal phases as a consequence of minimising the free volume of the system either through design engineering of molecular shape or through deformation of molecular architecture. Following this concept, a number of realisations were made, for example, smectic A phases with variable layer spacing, smectic C phases without layer shrinkage, lattices of free space and fibres in NTB phases.

Additional information

Funding

This work was supported by the Engineering and Physical Sciences Research Council [grant number EP/L012375/1], [grant number EP/J007714/1], [grant number EP/E064299/1]; the Leverhulme Trust, the European Science Foundation; Kingston Chemicals; DERA/QinetiQ; and the Wild Trust.