COMPOSITION AND METHOD FOR RETENTION OF SOLVATED COMPOUNDS AND IONS

摘要

Storage stable polyhydroxylated aromatic ether adducts of polyalkylene oxide are described. Reactive compositions are formed by combining an ether adduct with an aldehyde, optionally further adding a phenolic-aldehyde prepolymer. The reactive compositions are cured by removing water, by acidification, or both. The cured compositions sorb solvated compounds from environments containing water. The cured compositions are also useful for pre-loading with compounds that are subsequently released at a controlled rate into environments containing water.

主权项

1. A composition comprising
a. a reaction product of
i. an ether adduct having the structure X—O—Y, wherein X is the residue of a polyhydroxylated aromatic compound free of methylol moieties, O is oxygen, and Y is a group comprising from about 10 to 1000 polyalkylene oxide repeat units;ii. a phenolic aldehyde prepolymer, an aldehyde, or a combination thereof; and b. a cyclodextrin.