Optimization of the Friedel–Crafts Alkylation for the Synthesis of Hyper-Cross-Linked Polymers
Federico Begni, Francesca Gullo, Geo Paul, Riccardo Rea, Maria‐Chiara Ferrari, Enzo Mangano, Maurizio Cossi, Giorgio Gatti, Leonardo Marchese
Abstract
An optimized Friedel–Crafts based methodology used to prepare high surface area and pore volume hyper-cross-linked polymers (HCPs) is presented here. A significant reduction in catalyst quantities resulted in an HCP showing SSABET of 905 m2/g and total pore volume of ≈1.12 cm3/g. Spectroscopic investigations (DR-FTIR and SS-NMR) reveal that lowering the amount of catalyst avoid uncontrolled reaction pathways. For the optimized material, CO2 uptakes are 2.55 mmol/g at 273 K and 1 bar. High pressure measurements at 298 K resulted in the uptake of 7.33 mmol/g of CO2 at 24 bar and 3.84 mmol/g of CH4 at 42 bar.