Jump to main content
Jump to site search

Issue 39, 2010
Previous Article Next Article

Bent-core liquid crystal elastomers

Author affiliations


Liquid crystal (LC) elastomers with bent-core side-groups incorporate the properties of bent-core liquid crystals in a flexible and self-supporting polymer network. Bent-core liquid crystal elastomers (BCEs) with uniform alignment were prepared by attaching a reactive bent-core LC to poly(hydrogenmethylsiloxane) and crosslinking with a divinyl crosslinker. Phase behavior studies indicate a nematic phase over a wide temperature range that approaches room temperature, and thermoelastic measurements show that these BCEs can reversibly change their length by more than a factor of two upon heating and cooling. Small-angle X-ray scattering studies reveal multiple, broad low-angle peaks consistent with short-range smectic C order of the bent-core side groups. A comparison of these patterns with predictions of a Landau model for short-range smectic C order shows that the length scale for smectic ordering in BCEs is similar to that seen in pure bent-core LCs. The combination of rubber elasticity and smectic ordering of the bent-core side groups suggests that BCEs may be promising materials for sensing, actuating, and other advanced applications.

Graphical abstract: Bent-core liquid crystal elastomers

Back to tab navigation

Publication details

The article was received on 16 Jun 2010, accepted on 28 Jul 2010 and first published on 27 Aug 2010

Article type: Paper
DOI: 10.1039/C0JM01920H
Citation: J. Mater. Chem., 2010,20, 8488-8495
  •   Request permissions

    Bent-core liquid crystal elastomers

    R. Verduzco, P. Luchette, S. H. Hong, J. Harden, E. DiMasi, P. Palffy-Muhoray, S. M. Kilbey II, S. Sprunt, J. T. Gleeson and A. Jákli, J. Mater. Chem., 2010, 20, 8488
    DOI: 10.1039/C0JM01920H

Search articles by author