A superhydrophobic and porous polymer adsorbent with large surface area

A superhydrophobic hypercrosslinked microporous polymer adsorbent, SHMP-1, with a water contact angle of 167 degrees and an oil contact angle < 3 degrees, was synthesized. SHMP-1 has a specific surface area of up to 2100 m(2) g(-1), higher than the largest one (i.e. 1618 m(2) g(-1)) reported for superhydrophobic materials. It is an amorphous polymer with a highly cross-linked structure of monomers linked by methylene, and consists of packed amorphous porous cells with pore channel widths of 5-19 angstrom. SHMP-1 can be stable up to 380 degrees C, and in organic solvents (e.g. ethanol, acetone, carbon tetrachloride, tetrahydrofuran and n-hexane), HCl (5 mol L-1) and NaOH (5 mol L-1) solution. This polymer could be a promising adsorbent for absorption of organic solvents with capacities ranging from 4-25 times its own weight and capturing CO2 with an adsorption capacity of up to 6.02 mmol g(-1) (273 K, 1 bar). Moreover, the CO2 adsorption capacity of SHMP-1 will not be decreased significantly (loss < 2.03%) by moisture even at a relative humidity of up to 90%, because of the surface superhydrophobicity.

Automated summary

SHMP-1 is a superhydrophobic hypercrosslinked microporous polymer adsorbent with a specific surface area of up to 2100 m(2) g(-1). It is stable at high temperatures and in various solvents, while exhibiting high affinity for organic solvents and CO2 adsorption capacity.