Abstract
Calorimetric studies have been performed on a mixture of achiral bent-shaped and rod-like molecules using a high-resolution ac calorimetry and a high-sensitivity differential scanning calorimetry (DSC). Both ac calorimetry and DSC yielded essentially the same result for B 4–B X transition, while a significant difference has been observed at the isotropic-B 4 transition during cooling. Particularly, DSC measurements revealed the characteristic heat capacity behavior accompanying distinct many peaks at the isotropic-B 4 transition. A comparison with recent reports strongly suggests that the obtained data reflect the growth processes of the helical nanofilaments in the isotropic 5CB molecules.
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More From: Physica E: Low-dimensional Systems and Nanostructures
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