Fig. 2: The quantitative post-modification of PIM-1 through conventional and non-solvent methods with a volatile Grignard reagent, methylmagnesium bromide (CH3MgBr). | Nature Communications

Fig. 2: The quantitative post-modification of PIM-1 through conventional and non-solvent methods with a volatile Grignard reagent, methylmagnesium bromide (CH3MgBr).

From: Non-solvent post-modifications with volatile reagents for remarkably porous ketone functionalized polymers of intrinsic microporosity

Fig. 2

Ketone-PIM−1 (K-PIM-1) was further reacted by the same reagent to make Alcohol-PIM−1 (OH-PIM-1) with remarkably high retention of porosity, considering the two-step reaction. Solvent: (i) CH3MgBr in tetrahydrofuran (THF), THF solvent at 0 °C → RT for 24 h (ii) 0.5 M hydrochloric acid (HCl) in methanol (MeOH), H2O at 60 °C for 4 h. Non-solvent: (i) CH3MgBr in diethyl ether (Et2O) at 0 °C → RT for 24 h (ii) 0.5 M HCl in MeOH, H2O at 60 °C for 4 h. K-PIM−1 was further functionalized by phenylhydrazine (PhNHNH2) and polyethylenimine (PEI) to show versatility in the reactive portfolio and to create CO2 adsorbents.

Back to article page