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首页> 外文期刊>Applied Surface Science >Straightening single-walled carbon nanotubes by helically wrapped poly(9, 9-dioctylfluorene) chains
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Straightening single-walled carbon nanotubes by helically wrapped poly(9, 9-dioctylfluorene) chains

机译：通过螺旋缠绕的聚（9，9-二辛基芴）链拉直单壁碳纳米管

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摘要

In the present work, we found that single-walled carbon nanotubes (SWCNTs) could be straightened by poly(9,9-dioctylfluorene) (PFO) chains with both alpha- and beta-conformations in different solvents. UV-vis and PL spectroscopic studies confirm that there exists pi-pi interaction between SWCNTs and PFO. SWCNTs are helically wrapped by the adsorbed PFO chains, which is different from the coaxial interaction between SWCNTs and poly (3-hexylthiophene) (P3HT). More stretched PFO beta-conformers have a stronger interaction with SWCNTs, and the interactions between SWCNTs and PFO slightly improve the conjugation length of beta-conformers in turn. We proposed that the straightening of SWCNTs by adsorbed rigid conjugated polymers is irrespective of interaction mode between them.
机译：在目前的工作中，我们发现单壁碳纳米管（SWCNT）可以通过在不同溶剂中具有α和β构型的聚（9,9-二辛基芴）（PFO）链拉直。紫外可见和PL光谱研究证实SWCNT和PFO之间存在pi-pi相互作用。 SWCNT被吸附的PFO链螺旋包裹，这不同于SWCNT与聚（3-己基噻吩）（P3HT）之间的同轴作用。拉伸程度更高的PFOβ-构象异构体与SWCNT的相互作用更强，SWCNT和PFO之间的相互作用反过来会稍微改善β-构象异构体的结合长度。我们提出，吸附的刚性共轭聚合物对SWCNT的拉直与它们之间的相互作用方式无关。

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  • 来源
    《Applied Surface Science》 |2019年第31期|205-212|共8页
  • 作者

    Guo Xiao-Shuai; Zhang Tian-Yu; Wang Rui-Yang; Xu Jun-Ting; Fan Zhi-Qiang;

  • 作者单位

    Zhejiang Univ, Dept Polymer Sci & Engn, MOE, Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China;

    Zhejiang Univ, Dept Polymer Sci & Engn, MOE, Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China;

    Zhejiang Univ, Dept Polymer Sci & Engn, MOE, Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China;

    Zhejiang Univ, Dept Polymer Sci & Engn, MOE, Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China;

    Zhejiang Univ, Dept Polymer Sci & Engn, MOE, Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Carbon nanotube; Poly(9,9-dioctylfluorene); Straightening mechanism; Conformation;

    机译：碳纳米管;聚（9,9-二辛基芴）;伸直机理;构象;

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