Seeded Self-Assembly of Charge-Terminated Poly(3-hexylthiophene) Amphiphiles Based on the Energy Landscape
Seeded Self-Assembly of Charge-Terminated Poly(3-hexylthiophene) Amphiphiles Based on the Energy Landscape
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DOI：
10.1021/jacs.0c06185
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发表时间：
2020-09-02
影响因子：
15
通讯作者：
Manners, Ian
中科院分区：
文献类型：
--
作者：
Fukui, Tomoya;Garcia-Hernandez, J. Diego;Manners, Ian
创建具有精确控制和优化光电性能的一维jr共轭纳米纤维是纳米线应用的广泛兴趣。“活体”结晶驱动自组装（CDSA）是一种种子生长方法，对于从一系列可结晶的聚合物两亲体制备均匀的一维纤维状胶束越来越重要。然而，对于最重要的一类共轭聚合物聚噻吩来说，迄今为止使用嵌段共聚物作为前体仅取得了有限的成功。在这里，我们描述了磷酸端端两亲性聚（3-己基噻吩）s的活CDSA制备胶体稳定的纳米纤维的研究。对聚合程度和自组装行为之间关系的深入研究，揭示了活CDSA过程的能量格局。基于所提供的动力学和热力学知识，我们已经能够实现对低分散性纤维状胶束长度的前所未有的控制，从40 nm到2.8 μ m。
The creation of 1D Jr-conjugated nanofibers with precise control and optimized optoelectronic properties is of widespread interest for applications as nanowires. "Living" crystallization-driven self-assembly (CDSA) is a seeded growth method of growing importance for the preparation of uniform 1D fiber-like micelles from a range of crystallizable polymeric amphiphiles. However, in the case of polythiophenes, one of the most important classes of conjugated polymer, only limited success has been achieved to date using block copolymers as precursors. Herein, we describe studies of the living CDSA of phosphonium-terminated amphiphilic poly(3-hexylthiophene)s to prepare colloidally stable nanofibers. In depth studies of the relationship between the degree of polymerization and the self-assembly behavior permitted the unveiling of the energy landscape of the living CDSA process. On the basis of the kinetic and thermodynamic insight provided, we have been able to achieve an unprecedented level of control over the length of low dispersity fiber-like micelles from 40 nm to 2.8 mu m.