Highly Oriented Nanofibrils of Regioregular Poly(3-hexylthiophene) Formed via Block Copolymer Self-Assembly in Liquid Crystals

被引：20
|
作者：
Tong, Xia [1 ]
Han, Dehui [1 ]
Fortin, Daniel [1 ]
Zhao, Yue [1 ]
机构：
[1] Univ Sherbrooke, Dept Chim, Sherbrooke, PQ J1K 2R1, Canada
来源：
ADVANCED FUNCTIONAL MATERIALS | 2013年 / 23卷 / 02期
基金：
加拿大自然科学与工程研究理事会;
关键词：
semiconducting polymers; self-assembly; liquid crystals; CONJUGATED POLYMERS; ALIGNMENT;
D O I：
10.1002/adfm.201202056
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A novel method making use of block copolymer self-assembly in nematic liquid crystals (LCs) is described for preparing macroscopically oriented nanofibrils of p-conjugated semiconducting polymers. Upon cooling, a diblock copolymer composed of regioregular poly(3-hexylthiophene) (P3HT) and a liquid crystalline polymer (LCP) in a block-selective LC solvent can self-assemble into oriented nanofibrils exhibiting highly anisotropic absorption and polarized photoluminescence emission. An unusual feature of the nanofibrils is that P3HT chains are oriented along the fibrils' long axis. This general method makes it possible to use LCs as an anisotropic medium to grow oriented nanofibrils of many semiconducting polymers insoluble in LCs.
引用
收藏
页码：204 / 208
页数：5
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