Acta Chim. Sinica ›› 2019, Vol. 77 ›› Issue (5): 397-405.DOI: 10.6023/A19010039 Previous Articles     Next Articles

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聚芴类共轭聚合物(PFs)从溶液到薄膜凝聚态演变过程中的定量构效关系

张昊, 黄龙, 李涛, 刘宾, 白泽明, 李小娜, 陆丹   

  1. 吉林大学化学学院 超分子结构与材料国家重点实验室 长春 130012
  • 收稿日期:2018-12-25 出版日期:2019-05-15 发布日期:2019-03-18
  • 通讯作者: 陆丹 E-mail:lud@jlu.edu.cn
  • 作者简介:张昊,吉林大学化学学院在读博士生.2012年、2016年、2018年于吉林大学化学学院就读学士、硕士及博士,师从陆丹教授.研究方向为共轭高分子溶液行为及凝聚态结构;陆丹,理学博士,教授,博士生导师.1993年考入中国科学院长春应用化学研究所,高分子化学与物理国家重点实验室攻读硕士学位后直博,师从于冯之榴、李滨耀研究员,1998年获得博士学位.1998~2001年,在吉林大学超分子结构与材料国家重点实验室,师从于沈家骢院士做博士后研究工作,后留校任教.研究兴趣主要包括:共轭聚合物链构象变化对载流子迁移特性影响的研究;外电场对共轭高分子有序结构的调控及载流子迁移特性的影响;共轭高分子PFO链构象及其凝聚态结构的标度律研究.
  • 基金资助:

    项目受国家自然科学基金(Nos.21174049,91333103,21574053)资助.

Quantitative Structure-property Relationship of Polyfluorene Conjugated Polymers Condensed State from Solution to Film

Zhang Hao, Huang Long, Li Tao, Liu Bin, Bai Zeming, Li Xiaona, Lu Dan   

  1. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012
  • Received:2018-12-25 Online:2019-05-15 Published:2019-03-18
  • Contact: 10.6023/A19010039 E-mail:lud@jlu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 21174049, 91333103, 21574053).

Polyfluorenes are not only a class of classical blue conjugated polymers with high fluorescence efficiency and good thermal stability, but also a hairy-rod polymer model due to their rigid main chain and flexible side chain. Therefore, PFs have received attention and related reports are continuing. Most of the research on PFs has focused on the synthesis of new functional materials and the improvement of device structure to improve their photoelectric properties. However, the research on single chain conformation, chain aggregation structure, film condensed structure and photovoltaic devices performance in the process of precursor solution to film are rarely reported. In recent years, our research group focused on the quantitative structure-property relationship of polyfluorene conjugated polymers condensed state from solution to film. The complex single chain and aggregate shape characteristics of PFs precursor solutions were studied by static/dynamic laser scattering and other methods. Combining spectroscopy, electron microscopy and other methods, the kinetic evolution of PFs in isolated single chain, aggregation condensed-structures, transition state and the mechanism and regularity of β-conformation are revealed. Quantitative structure-property relationship of single-chain conformation of precursor solution, aggregate structure of thin film and optoelectronic device performance is established. The aim is to improve the photoelectric efficiency of the polymer from the intrinsic properties. The research will have important guiding significance not only for polyfluorene-based polymers but also for the design and processing of the entire conjugated polymer materials.

Key words: conjugated polymer, chain conformation, aggregate state, photoelectric property, quantitative structure-property relationship