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Functional organogelators formed by liquid-crystal carbazole-containing bis-MPA dendrimers

机译:液晶包含咔唑的双-MPA树枝状大分子形成的功能性有机胶凝剂

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摘要

Novel functional gelators with a dendritic structure based on flexible bis-MPA dendrons that combine mesogenic and carbazole moieties have been prepared. Both the precursory dendrons and the resulting codendrimers show rich supramolecular chemistry, exhibiting both liquid crystalline phases and gelling properties in several low-polarity organic solvents. The study of the self-assembly processes reveals that non-covalent weak interactions control the formation of the supramolecular gels. Due to the carbazole moieties, these gels show interesting electronic properties with an increased fluorescence emission arising from an aggregation-induced emission enhancement (AIEE) effect and electrochemical behaviour. Oxidative polymerisation has been proven to be effective for fixing the gel structure in thin layers of xerogels deposited on ITO electrodes.
机译:制备了具有新的功能性胶凝剂,其基于结合了介晶和咔唑基团的柔性bis-MPA树突。前体树突和所得共晶分子均显示出丰富的超分子化学,在几种低极性有机溶剂中均显示液晶相和胶凝特性。自组装过程的研究表明,非共价弱相互作用控制超分子凝胶的形成。由于咔唑部分,这些凝胶显示出令人感兴趣的电子特性,并且由于聚集诱导的发射增强(AIEE)效应和电化学行为而产生了荧光发射增加。业已证明氧化聚合可有效地将凝胶结构固定在ITO电极上沉积的干凝胶薄层中。

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