Figure 1 | NPG Asia Materials

Figure 1

From: Intensified synthesis and post-synthetic modification of covalent organic frameworks using a continuous flow of microdroplets technique

Figure 1

(a) Schematic representation of the covalent organic framework (COF) synthesis through initial imine formation and subsequent tautomerization to give the β-ketoenamine-linked COFs; (b) representation of the synthesis of the COFs (TpPa-H, TpPa-Me and TpPa-NO2) and serial post-synthetic modification of TpPa-NO2 to TpPa-NH2; (c) monitoring the ‘in-droplet’ reaction progress (15 min, 100 °C) using dynamic color changes and filling of the droplet with a deep-red precipitate. Tp, 1,3,5-triformylphloroglucinol.

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