What Is the Assembly Pathway of a Conjugated Polymer From Solution to Thin Films?
What Is the Assembly Pathway of a Conjugated Polymer From Solution to Thin Films?
复制标题
共轭聚合物从溶液到薄膜的组装途径是什么?
DOI:
10.3389/fchem.2020.583521
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发表时间:
2020
影响因子:
5.5
通讯作者:
Diao Y
中科院分区:
文献类型:
--
作者:
Xu Z;Park KS;Diao Y
The hierarchical assembly of conjugated polymers has gained much attention due to its critical role in determining optical/electrical/mechanical properties. The hierarchical morphology encompasses molecular-scale intramolecular conformation (torsion angle, chain folds) and intermolecular ordering (π–π stacking), mesoscale domain size, orientation and connectivity, and macroscale alignment and (para)crystallinity. Such complex morphology in the solid state is fully determined by the polymer assembly pathway in the solution state, which, in turn, is sensitively modulated by molecular structure and processing conditions. However, molecular pictures of polymer assembly pathways remain elusive due to the lack of detailed structural characterizations in the solution state and the lack of understanding on how various factors impact the assembly pathways. In this mini-review, we present possible assembly pathways of conjugated polymers and their characteristics across length scales. Recent advances in understanding and controlling of assembly pathways are highlighted. We also discuss the current gap in our knowledge of assembly pathways, with future perspectives on research needed on this topic.
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