Concomitant Covalent and Noncovalent Assembly: Self-Assembly of Sublimable Caffeine in the Formation of Microporous Organic Polymer for Morphology Evolution and Enhanced Performance,ACS Sustainable Chemistry & Engineering

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Concomitant Covalent and Noncovalent Assembly: Self-Assembly of Sublimable Caffeine in the Formation of Microporous Organic Polymer for Morphology Evolution and Enhanced Performance
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-09-04 , DOI: 10.1021/acssuschemeng.0c05290
Chang Wan Kang ₁ , Sang Moon Lee ₂ , Hae Jin Kim ₂ , Yoon-Joo Ko ₃ , Seung Uk Son ₁

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This work introduces a so-called “caffeine method” for morphology evolution of microporous organic polymer (MOP). In a proper reaction medium such as triethylamine, caffeine undergoes dynamic self-assembly to 1D crystalline morphologies. The resultant caffeine powder is sublimable. The Sonogashira coupling of multiethynylarenes with multihaloarenes was conducted with the concomitant self-assembly of caffeine in triethylamine to form MOP materials. Through the removal of caffeine from the MOP materials via sublimation, the morphologies of MOP were engineered to 1D ribbon-like or tubular materials. The caffeine method could be applied to shape-controlled synthesis of emissive and catalytic MOP materials. Compared to conventional irregular MOP powder prepared without caffeine, the 1D morphological MOP materials showed enhanced sensing and catalytic performance, due to the thin thicknesses and reduced diffusion pathways of the substrates.

中文翻译：

伴随的共价和非共价组装：可微溶的咖啡因在微孔有机聚合物形成过程中的自组装，以促进形态演化和增强性能

这项工作为微孔有机聚合物（MOP）的形态演变引入了一种所谓的“咖啡因法”。在适当的反应介质（如三乙胺）中，咖啡因会动态自组装成1D晶体形态。所得的咖啡因粉末是可升华的。进行多乙炔基与多卤代芳烃的Sonogashira偶联，同时伴随咖啡因在三乙胺中的自组装以形成MOP材料。通过升华从MOP材料中去除咖啡因，将MOP的形态工程化为一维带状或管状材料。咖啡因方法可用于发射和催化MOP材料的形状控制合成。与不含咖啡因的常规不规则MOP粉末相比，

更新日期：2020-09-21

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