In this work, an upgraded photopyroelectric setup has been used to investigate phase transitions in liquid crystals dispersed with photochromic molecules. In particular, we have studied the thermal diffusivity before, during, and after the photo-induced conformational changes of the dispersed photochromic molecules. Upon sample irradiation, an opposite shift of the phase transition temperatures were observed in the investigated 8CB–NP and 8CB–7AB mixtures due to the different changes in the shape undergone by the dispersed active molecules.
Paoloni, S., Mercuri, F., Zammit, U. (2019). Analysis of UV Assisted Phase Transitions in Mixtures of Liquid Crystals with Photochromic Compounds by Photopyroelectric Calorimetry. INTERNATIONAL JOURNAL OF THERMOPHYSICS, 40(12) [10.1007/s10765-019-2575-4].
Analysis of UV Assisted Phase Transitions in Mixtures of Liquid Crystals with Photochromic Compounds by Photopyroelectric Calorimetry
Paoloni S.;Mercuri F.;Zammit U.
2019-01-01
Abstract
In this work, an upgraded photopyroelectric setup has been used to investigate phase transitions in liquid crystals dispersed with photochromic molecules. In particular, we have studied the thermal diffusivity before, during, and after the photo-induced conformational changes of the dispersed photochromic molecules. Upon sample irradiation, an opposite shift of the phase transition temperatures were observed in the investigated 8CB–NP and 8CB–7AB mixtures due to the different changes in the shape undergone by the dispersed active molecules.| File | Dimensione | Formato | |
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