Title: Preparation and Characterization of Azobenzene Liquid-Crystalline Elastomer Films with Homeotropic Alignment
Abstract: ABSTRACT Azobenzene liquid-crystalline elastomer (LCE) films with homeotropic alignment were prepared by in-situ photopolymerization of mixtures of an LC monomer and a cross linker, both of which contain azobenzene chromophores. Thermodynamic and mesomorphic properties of the monomers and the LCE films were determined by differential scanning calorimertry and polarizing optical microscopy. X-ray diffraction patterns revealed that the LCE films show a smectic A phase. Polarized UV spectra and conoscopic observation with a polarizing optical microscope demonstrated that the azobenzene mesogens are aligned homeotropically in the films.
Publication Year: 2005
Publication Date: 2005-11-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 5
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