Tunable Surface Area, Porosity, and Function in Conjugated Microporous Polymers.

ABSTRACT: Simple inorganic salts are used to tune N-containing conjugated microporous polymers (CMPs) synthesized by Buchwald-Hartwig (BH) cross-coupling reactions. Poly(triphenylamine), PTPA, initially shows a broad distribution of micropores, mesopores, and macropores. However, the addition of inorganic salts affects all porous network properties significantly: the pore size distribution is narrowed to the microporous range only, mimicking COFs and MOFs; the BET surface area is radically improved from 58 m²  g^-1 to 1152 m²  g^-1 ; and variations of the anion and cation sizes are used to fine-tune the surface area of PTPA, with the surface area showing a gradual decrease with an increase in the ionic radius of salts. The effect of the salt on the physical

SUBMITTER: Chen J 

PROVIDER: S-EPMC6771584 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature