ABSTRACT

Preparation of poly(thiophene-alt-pyrrole bearing mesogen) was carried out with Migita–Kosugi–Stille coupling type polycondensation with an aid of Pd(0) complex catalyst. The resultant polymer shows lyotropic liquid crystallinity with good film-forming property. The smectic fan-shaped texture is maintained after completion of evaporation of solvent from the polymer solution. The cast film having liquid crystal (LC) order shows light emission function upon irradiation of excitation light at 460 nm. The polymer shows LC domain emission. Mechanical orientation allows to yield LC domain aligned film with band structure. Chiral mesogenic side chain induces π-conjugated main chain helicity from distance in molecular level.

摘要

聚（噻吩的制备ALT -吡咯轴承介晶）进行与右田-小杉Stille偶联型缩聚用Pd（0）络合物催化剂的辅助。所得聚合物显示出具有良好成膜性的溶致液晶性。在从聚合物溶液中蒸发完溶剂之后，保持近晶扇形纹理。具有液晶（LC）级的流延膜在460nm激发光照射时显示出发光功能。聚合物显示出LC域发射。机械取向允许产生具有带结构的LC畴对准的膜。手性介晶侧链从分子水平上的距离诱导π共轭主链螺旋。