Molecular assembly and properties of polythiophenes
Molecular assembly and properties of polythiophenes
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DOI：
10.1038/asiamat.2010.37
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发表时间：
2010-04
影响因子：
9.7
通讯作者：
Takakazu Yamamoto
中科院分区：
文献类型：
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作者：
Takakazu Yamamoto
π共轭聚合物广泛应用于工业领域，并有望成为未来电子和光学技术的重要组成部分。分子自组装是提高π共轭聚合物功能性和实用性的一种很有前途的方法。自组装产生的聚合物材料中的载流子迁移率受到分子组装的形态和状态的影响，其影响方式类似于硅中的结晶度和非晶性。具有控制分子结构和长侧链的π共轭多噻吩常通过侧链聚集自组装形成π堆叠结构。与非自组装的π共轭多噻吩相比，该多噻吩具有更高的载流子迁移率、光学三阶非线性磁化率和Verdet常数。本文综述了具有区域规则头对尾、Th (R) -Ar-Th (R)和炔基侧链头对头结构的自组装π共轭多噻吩的研究进展和功能。
π-Conjugated polymers are used in many industrial applications and are expected to become an integral part of future electronic and optical technologies. Molecular self-assembly is a promising method for improving the functionality and utility of π-conjugated polymers. The carrier mobility in polymer materials produced by self-assembly is influenced by the morphology and state of molecular assembly in a similar manner to the influence of crystallinity and amorphism in silicon. π-Conjugated polythiophenes with controlled molecular structures and long side chains often form π-stacked structures by self-assembly through side-chain aggregation. Such polythiophenes have higher carrier mobility, optical third-order nonlinear susceptibility and Verdet constant compared with π-conjugated polythiophenes that do not self-assemble. This review covers the development and functionalities of self-assembled π-conjugated polythiophenes with regio-regular head-to-tail, Th (R)–Ar–Th (R) and head-to-head structures with alkynyl side chains.