High tilt antiferroelectric esters bearing a perfluorobutanoyloxy terminal chain: the influence of lateral fluoro substituents on mesomorphic behaviour, tilt angle, and spontaneous polarization
High tilt antiferroelectric esters bearing a perfluorobutanoyloxy terminal chain: the influence of lateral fluoro substituents on mesomorphic behaviour, tilt angle, and spontaneous polarization
复制标题
带有全氟丁酰氧基端链的高倾斜反铁电酯：侧向氟取代基对介晶行为、倾斜角和自发极化的影响
DOI：
--
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
H. Gleeson
中科院分区：
文献类型：
--
作者：
Andrew I. Stipetic;J. Goodby;M. Hird;Y. Raoul;H. Gleeson
新型液晶酯已被合成与全氟羰基氧基末端链和侧氟取代基，以确定它们对介晶行为，倾斜角和自发极化的影响。横向氟取代基的某些位置提供了非常低的熔点和相当宽的反铁电相的温度范围，并且可以产生高达45°的增强的倾斜角，尽管自发极化总是低于没有横向氟取代基的母体系统。因此，这些新材料，特别是作为混合物中的组分，应该在高倾斜反铁电（正锥）应用中是有用的。
Novel liquid crystalline esters have been synthesized with a perfluorocarbonyloxy terminal chain and lateral fluoro substituents in order to determine their influence on mesomorphic behaviour, tilt angle and spontaneous polarization. Certain locations of lateral fluoro substituents provide for very low melting points and reasonably wide temperature ranges of the antiferroelectric phase, and can generate enhanced tilt angles of up to 45°, although spontaneous polarization is always lower than for the parent system without lateral fluoro substituents. Thus, these novel materials, particularly as components in mixtures, should be useful in high tilt antiferroelectric (orthoconic) applications.