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首页> 外文期刊>RSC Advances >Synthesis of a bi-functional terminal polyhedral octasilicate-core dendrimer containing carbazole and 1,8-naphthalimide, and its photoluminescence properties, film formability, and glass transition behavior
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Synthesis of a bi-functional terminal polyhedral octasilicate-core dendrimer containing carbazole and 1,8-naphthalimide, and its photoluminescence properties, film formability, and glass transition behavior

机译：含有咔唑和1,8-萘胺的双官能末端多叠碳酸核核心树突的合成及其光致发光性能，薄膜成形性和玻璃过渡行为

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摘要

The bi-functional terminal polyhedral octasilicate (OS)-core dendrimer containing carbazole and 1,8-naphthalimide on its peripheries, denoted by OS-NC, was synthesized by the combination of a ring-opening reaction and the condensation reaction of octakis(propenyl succinicanhydro) polyhedral octasilicate (OS-SA) with 9H-carbazole-9-ethanol and N-(hydroxyethyl)-1,8-naphthalimide. The binary blend of the same molar amounts of individual constituent OS-core dendrimers (carbazole-terminated OS-core dendrimer and 1,8-naphthalimide-terminated OS-core dendrimer) was also prepared. The coating film of OS-NC was easily peeled off from the substrate and formed a free-standing film, while the binary blend of the same molar amounts formed a waxy solid. Despite the utilization of intermolecular donor-acceptor interactions, the glass transition temperature (T-g) of the binary blends obeys the Kwei equation with a negative q value. The photoluminescence spectrum of OS-NC and the binary blends in the film state showed exciplex emission. In particular, OS-NC showed a larger red-shift emission than the binary blends.
机译：通过OS-NC表示的双函数末端多硅酸盐（OS） - 含有咔唑和1,8-萘二烷基酰亚胺的咔唑和1,8-萘胺，通过开环反应和Octakis的缩合反应（丙烯基琥珀酸钠）多面体六六硅酸盐（OS-SA），具有9H-咔唑-9-乙醇和N-（羟乙基）-1,8-萘二甲酰。还制备了相同摩尔量的二元混合物，制备了相同摩尔量的单独组成型OS核心树突（咔唑封端的OS核心树突和1,8-萘酰亚胺封端的OS核心树突）。 OS-Nc的涂膜容易从基板上剥离并形成独立膜，而相同摩尔量的二元共混物形成蜡质固体。尽管利用分子间供体 - 受体相互作用，但二进制混合物的玻璃化转变温度（T-G）与负Q值遵循KWEI方程。 OS-NC的光致发光光谱和膜状态中的二进制共混物显示出基于复合物发射。特别地，OS-NC显示出比二元共混物更大的红移发射。

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  • 来源
    《RSC Advances》 |2016年第10期|共8页
  • 作者

    Irie Yasuyuki; Yamanaka Takahiro; Naka Kensuke;

  • 作者单位

    Kyoto Inst Technol Grad Sch Sci &

    Technol Fac Mol Chem &

    Engn Sakyo Ku Goshokaido Cho Kyoto 6068585 Japan;

    Kyoto Inst Technol Grad Sch Sci &

    Technol Fac Mol Chem &

    Engn Sakyo Ku Goshokaido Cho Kyoto 6068585 Japan;

    Kyoto Inst Technol Grad Sch Sci &

    Technol Fac Mol Chem &

    Engn Sakyo Ku Goshokaido Cho Kyoto 6068585 Japan;

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  • 正文语种 eng
  • 中图分类 化学;
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