Five-Minute Mechanosynthesis of Hypercrosslinked Microporous Polymers

• DOI: 10.1021/acs.chemmater.0c01726
• Publication Date: 2020-08-06T20:53:12Z
• Authors: Jet-Sing M. Lee; Takuya Kurihara; Satoshi Horike
• Keywords: Mechanosynthesis

Designable porous materials have potential in a plethora of applications, but synthesis costs and strict reaction conditions limit their true commercialization. Herein, we show that hypercrosslinked polymers (HCPs) can be synthesized within minutes green, low-cost, mechanochemical route which avoids the use traditional toxic solvents. Microporous HCPs were obtained as little 10 s, with optimum surface areas up to 782 m2 g–1 only 5 min quantitative yields for both Friedel–Crafts "knitting" Scholl-coupling (SC) reactions. Liquid-assisted grinding SC model system resulted higher porosity than solution-synthesized equivalent. ssNMR studies showed degree polymerization was from mechanosynthesis presence trace green solvent porogen resulting such high porosity. This method allows near limitless variety highly an aromatic molecule minutes.