Orientation behavior and in-situ photopolymerization of two mesogenic acrylates

V. L. Khodzhaeva; I. I. Konstantinov; P. L. Magagnini; M. Paci; E. L. Tassi

doi:10.1117/12.301288

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1 January 1998 Orientation behavior and in-situ photopolymerization of two mesogenic acrylates

V. L. Khodzhaeva, I. I. Konstantinov, P. L. Magagnini, M. Paci, E. L. Tassi

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Proceedings Volume 3319, Liquid Crystals: Chemistry and Structure; (1998) https://doi.org/10.1117/12.301288
Event: Liquid Crystals, 1997, Zakopane, Poland

Abstract

IR spectroscopy was used to analyze the orientation behavior and in-situ photopolymerization of two mesogenic acrylates in the chiral smectic I phase and in the S_A phase, respectively. The orientation parameter, S, was determined using unpolarized radiation and by comparing the spectra of the mesophase with those of the isotropic phase. The type of alignment was deduced from the observation that the absorption is higher in the mesophase than in the isotopic phase for vibrations perpendicular to the mesogenic core. The change in the relative intensity of the bands with opposite direction of transition moments showed that the long axis of the mesogenic cores is tilted from the direction of the incident beam.

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V. L. Khodzhaeva, I. I. Konstantinov, P. L. Magagnini, M. Paci, and E. L. Tassi "Orientation behavior and in-situ photopolymerization of two mesogenic acrylates", Proc. SPIE 3319, Liquid Crystals: Chemistry and Structure, (1 January 1998); https://doi.org/10.1117/12.301288

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