A Novel Liquid Crystal Elastomer with Large Spontaneous Length Changes (original) (raw)

2011

Abstract

An order parameter describes an elastomer where a liquid crystal is cross linked at a temperature TL far from its clearing temperature. At TL, there is a first order constant density phase transition where the order parameter vanishes and the elastomer has cubic symmetry. Below TL it is an icosahedral nematic and above a biaxial nematic. This theory quantitatively accounts for spontaneous shape change, nonlinear elasticity and gelation dynamics in a novel liquid crystal elastomer.

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