Two series of diesters with bend-rod shapes were synthesized and their thermal properties characterized by POM and DSC. The central group conformational mobility and polarity as well as the length of the mesogenic groups were varied in order to correlate these parameters with mesophase stability. Results indicate that series II diesters are enantiotropic and that their mesophase sensitivity to central group structural changes is limited.
我们合成了两个系列的弯曲杆状二酯,并通过 POM 和
DSC 鉴定了它们的热特性。中心基团的构象流动性和极性以及介原基团的长度都发生了变化,以便将这些参数与介相稳定性联系起来。结果表明,系列 II 二酯具有对映性,它们的介相对中心基团结构变化的敏感性是有限的。