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The following article is Open access

Recent developments in photopyroelectric calorimetry for phase transition studies in liquid crystals

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Published under licence by IOP Publishing Ltd
, , Citation F Mercuri et al 2010 J. Phys.: Conf. Ser. 214 012010 DOI 10.1088/1742-6596/214/1/012010

1742-6596/214/1/012010

Abstract

We report on calorimetric measurements carried out in an upgraded photopyroelectric setup enabling the determination of the frequency dependence of the specific heat and of the latent heat exchanged over first order transitions as well as the simultaneously determined nematic correlation length obtained from light scattering measurements. It has been applied to the study of the Nematic-Isotropic transition of 8CB liquid crystal confined in a silica nanoparticle network, where the specific heat shows a double peak structure.

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10.1088/1742-6596/214/1/012010