Azobenzene-polymer-stabilized ferroelectric liquid crystals: photoalignment and morphology

Yue Zhao; Nadine Paiement; Sonia Sevigny; Steve LeClair; Shahrokh Motallebi; Martin Giguere; Luc Bouchard

doi:10.1117/12.473841

30 April 2003 Azobenzene-polymer-stabilized ferroelectric liquid crystals: photoalignment and morphology

Yue Zhao, Nadine Paiement, Sonia Sevigny, Steve LeClair, Shahrokh Motallebi, Martin Giguere, Luc Bouchard

Proceedings Volume 5003, Liquid Crystal Materials, Devices, and Applications IX; (2003) https://doi.org/10.1117/12.473841
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

Abstract

We exploit the use of azobenzene-containing polymer networks in ferroelectric liquid crystals (FLCs). One possible utility of the polymer in such a system is to induce and stabilize a bulk alignment of the FLC host, without surface orientation layers, through the photo-orientation of the azobenzene groups on the network under lineally polarized irradiation. Three azobenzene monomers, inclduign an achiral diacrylate, a chiral dimethacrylate and an achiral divinyl ether, were synthesized and investigated with two commercial FLC mixtures; polymerization was carried out thermally and photochemically. The photo-induced alignment of FLC was observed with two of these azobenzene polymers. Different phase separation behaviors and resulting morphologies were observed.

Citation Download Citation

Yue Zhao, Nadine Paiement, Sonia Sevigny, Steve LeClair, Shahrokh Motallebi, Martin Giguere, and Luc Bouchard "Azobenzene-polymer-stabilized ferroelectric liquid crystals: photoalignment and morphology", Proc. SPIE 5003, Liquid Crystal Materials, Devices, and Applications IX, (30 April 2003); https://doi.org/10.1117/12.473841

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