Polymer supported amino bis-(cis-propan 2,3 diol) functions for removal of trace boron from water

Abstract

Reaction of diallylamine with crosslinked terpolymer beads of glycidyl metacrylate–methyl methacrylate–ethylene glycol dimethacrylate yields corresponding polymers with diallylamino functions (2.4 mmol g i1 ). Cis-dihydroxylation of the allyl groups with hydrogen peroxide, in presence of OsO4 catalyst yields polymer supported amino-bis(cis-propane 2,3-diol) functions with 81.7% of conversion yields. The resulting polymer resin having vicinal cis-diol functions is a high capacity (1.77 mmol g i1 ) boron-speciWc sorbent and useful for extraction of of trace boric acid (105.1 ppm) from