| 摘要 |
A post-crosslinked adsorbent comprises: monomer units of (a) at least 47wt% at least one polyvinylaromatic monomer and (b) up to 53wt% at least one monovinylaromatic monomer; and 0-0.2 mmol/g pendent vinyl groups; wherein the dry adsorbent has BET specific surface area in the range of about 700-1500 m2/g, BET average pore diameter 6.0-11.8 nm, BET porosity 1.2-3.5 mL/g, BJH adsorption micropore volume less than 20% of total BJH adsorption pore volume, and HK micropore volume less than 24% of total BJH adsorption pore volume. The invention is also directed to a preparation method for the polymeric adsorbent.
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