Development of of electro-functional materials and devices based on supramolecular polymers

为了开发一种具有柱状LC几何形状的新型铁电液晶（FLCs），我利用Aida集团开发的LC介质超分子聚合实现的盘杆杂化柱状组装技术，开始合成合适的单体。该单体的合成涉及将弯核分子基序作为单体核心部分的侧链结合。在核心部分，采用了氢键基序。今年，我设计并合成了几个不同的侧链和核心单元来实现铁电性。对于核心单元，我们设计并合成了具有合适的碗状反转势垒的碗状分子。在这种情况下，铁电性质是由核心单位给出的。因此，侧链单元可以更简单。将侧链与核心单元耦合后，可望得到柱状LC，实现铁电柱状LC。

In order to develop a new type of ferroelectric liquid crystals (FLCs) having columnar LC geometries, by using the technology of disk-rod hybrid columnar assembly realized by supramolecular polymerization in LC media, which is developed in Aida group, I started to synthesize an appropriate monomer. The synthesis of the monomer involves the incorporation of a bent-core molecular motif as a side chain of the core part of the monomer. In the core part, a hydrogen-bonding motif was employed.This year, I have designed and synthesized a couple of different side-chains and core units for realizing the ferroelectric property. For the core units, bowl-shaped molecules having an appropriate bowl-inversion barrier were newly designed and synthesized. In this case, the ferroelectric property is given by the core unit. Therefore, the side chain units could be more simple. After coupling the sidechain and the core units, columnar LC is expected to be obtained and the ferroelectric columnar LC would be realized.