3D14 シロキサンスペーサーを有する側鎖型高分子液晶の電場駆動

概要

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Recently, we have been investigating the synthesis and mesomorphic properties of the side-chain liquid crystalline polymers containing a very flexible siloxane bond in the spacer component. In this paper, the thermal property and the optical response ability of a series of copolymers containing siloxane spacer are disclosed. The copolymers were prepared by radical polymerization of 4'-cyanobiphenyl-4-oxyhexyl acrylate(CBHA) with a few methacrylate-type comonomers having a siloxane spacer between the mesogen and the methacryloyl group. The obtained copolymers exhibited a nematic phase, when the composition of the comonomer was below 40 mol%. Tg and Ti of the copolymers were decreased with increase of the comonomer component. Also, the optical switching of the copolymers in the electric field were observed at the lower temperature range than the case of homopolymer, poly-CBHA.
日本液晶学会の論文
1995-09-10