Ferroelectric polymer liquid crystal

Abstract

Abstract PURPOSE:To provide the title liq. crystal which exhibits a ferroelectric property even near ordinary temp., has a high speed of response to external factors, permits dynamic display, and is useful as a display element for a large image plane or a curved image plane and which comprises particular repeating units. CONSTITUTION:(Meth)acrylic acid (A) and an alkylene dihalide (B) (e.g., 1,10- dibromodecane) are heated in the presence of a catalyst in a solvent to conduct a reaction. The halogenoester thus obtd. is reacted with 2-methylbutyl 4'- hydroxybiphenyl-4-carboxylate (C) by heating in the presence of an alkali in a solvent, thereby obtaining a monomer of formula I (wherein R1 is H or CH3; n is 1-10; and X is a halogen). At least one monomer of formula I is reacted at 50-90 deg.C for 1-20hr in the presence of an initiator (e.g., azo bisisobutyronitrile), thereby obtaining the title liq. crystal having repeating units of formula II.

Inventors

• 👤 Toshiharu Uchida
• 👤 内田　俊治
• 👤 Kazuharu Morita
• 👤 森田　和春
• 👤 Kenji Hashimoto
• 👤 橋本　憲次

Bibliographic Details