PERYLENE-BASED FLUORESCENT LIQUID CRYSTAL DYE GUEST-HOST MIXTURES
PERYLENE-BASED FLUORESCENT LIQUID CRYSTAL DYE GUEST-HOST MIXTURES
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基于苝的荧光液晶染料客体混合物
DOI：
10.1080/10587250108023969
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
H. Coles
中科院分区：
文献类型：
--
作者：
P. Hondt;S. Perkins;H. Coles
摘要在有机硅氧烷基质中，我们研究了一系列以荧光分子为客体的染料客体混合物。这些主体在室温下具有温度无关的开关，可在10Vrms/μm数量级的电场范围内进行90°的切换。通过烷基间隔物将茂金属分子接枝到有机硅氧烷部分上，产生了新的坚固耐用的荧光染料，这些染料很容易在主体中混合。中间相中低摩尔质量的硅氧烷基团的微观分离倾向于形成近晶相。这些平面产生了有效的二维聚合物骨架，从而在这些低摩尔质量的铁电液晶上产生了聚合物液晶的坚固的机械性能。在这项研究中，我们展示了染料分子的引入如何影响有机硅氧烷主体的电光性质。
Abstract We present a study on a series of dye guest-host mixtures using fluorescent perylene-based molecules as the guest dye in an organosiloxane host. These hosts have temperature-independent switching, at room temperature, through 90° for fields of the order of 10 Vrms/μm. Perylene molecules have been grafted onto the organosiloxane moiety via an alkyl spacer producing novel and rugged fluorescent dyes that are readily miscible in the host. Micro-separation of the low molar mass siloxane groups in the mesophases tend to form smectic phases. These planes produce an effective two-dimensional polymer backbonethat engenders the rugged mechanical properties of polymeric liquid crystals onto these low molar mass ferroelectric liquid crystals. In this study we show how the introduction of the dye molecules affects the electro-optic properties of the organosiloxane host.