Alkenyl ether derivatives having a low viscosity, a good compatibility with other liquid crystalline compounds and suitable for use in the preparation of liquid crystal display elements, have the formula:
R₁-CH₂-O-(CH₂)n-A₁-A₂-A₃-R₂ (1)
in which R₁ represents a C₂-C₇ alkenyl group having a double bond at its terminal position or a double bond having a trans configuration at a position other than the terminal position; R₂ represents a C₁-C₁₀ alkyl or C₁-C₁₀ alkoxy group; A₁ and A₂ are the same or are different and each represents a 1,4-phenylene or trans-1,4-cyclohexylene group, or a single bond; and n is 1 or 2.
烯基醚衍
生物粘度低,与其他液晶化合物的相容性好,适用于制备液晶显示元件,其
化学式为
R₁-CH₂-O-(CH₂)n-A₁-A₂-A₃-R₂ (1)
其中 R₁ 代表在末端位置具有双键的 C₂-C₇ 烯基,或在末端位置以外的位置具有反式构型的双键;R₂ 代表 C₁-C₁₀烷基或 C₁-C₁₀烷氧基; A₁ 和 A₂ 相同或不同,且各自代表 1,4-亚苯基或反式-1,4-
环己烯基团或单键;且 n 为 1 或 2。