Acetylene Gas Mediated Conjugated Microporous Polymers (ACMPs): First Use of Acetylene Gas as a Building Unit

The facile method to synthesize microporous nanostructure acetylene mediated conjugated microporous polymers (ACMPs) with functional linkers through the one step Sonogashira reaction was reported. ACMP-C was fabricated by linking tetrakis(4-iodophenyl) methane with an acetylene gas, whereas ACMP-C6 and ACMP-N were synthesized from 1,3,5-tris(4-iodophenyl)benzene and tris(4-iodophenyl)amine, respectively. ACMP-C6 was synthesized using a planar-type starting building unit with three iodine terminals less suitable for formation of 3-dimensional networked nanostructure. The SEM analysis shows that the morphologies of the ACMPs are based on the structures assembled by only the sphere phase with 10-100 nm scale sizes. A thermal gravimetric analysis reveals that the ACMPs are stable up to 300°C and that the maximum weight loss occurs at the temperatures above 500°C. The results show that the ACMPs are stable in water and in general organic solvents such as chloroform, THF, acetone, methanol, hexane, and N,N-dimethylformamide.