通常认为，侧链液晶高分子柱状相的基本结构单元是具有整体柱状结构的单根高分子链。但是，一束主链倾向于平行排列的侧链液晶高分子所形成的超分子柱状结构也可以是柱状相的基本结构单元。长期以来，这一"多链模型"为高分子学术界所忽略。我们拟合成一系列hemi-phasmid侧链液晶高分子，并以此为对象来深入研究柱状相的"多链模型"。Hemi-phasmid液晶基元由棒状和扇形两部分相连而成。前期研究表明，hemi-phasmid侧链液晶高分子形成的柱状相应该用"多链模型"来予以理解。在本项目中，通过系统考察hemi-phasmid侧链的化学结构变化对体系液晶行为的影响，我们将揭示导致"多链模型"的主、侧链微相分离机制以及一束高分子链在组成超分子柱时的分子排列方式。

For the columnar phase of side-chain liquid crystalline polymers, it is usually believed that the building block is the cylindrical single-chain. Nevertheless, the supramolecular column, which is formed by a bundle of side-chain liquid crystalline polymer chains with the main-chains more or less packed parallel together, can also be the building block. This "multi-chain model" has been ignored by polymer community for long time. Here, we intend to synthesize a series of hemi-phasmid side-chain liquid crystalline polymers, which will be used to study in detail the "multi-chain model" of columnar phase. Hemi-phasmid mesogen is composed of two moieties of rod-like and fan-like linked together. Previous work indicated that the columnar phase of hemi-phasmid side-chain liquid crystalline polymer should be explained using the "multi-chain model". In this project, on the basis of the systematical investigation on how the liquid crystalline behavior depends on the chemical structure of the polymer synthesized, we will elucidate how the micro-phase separation between the main- and side-chain will result in the "multi-chain model". Furthermore, the molecular packing scheme of the bundle of chains within the supramolecular column will be revealed.