Article ID Journal Published Year Pages File Type
5211284 Reactive and Functional Polymers 2007 10 Pages PDF
Abstract

Monolithic polymer columns have been prepared by the in situ copolymerization of divinylbenzene and chloromethylstyrene in stainless steel tubes followed by a derivatization treatment with ethylenediamine or diethylenetriamine. These columns function for the flow-through non-destructive removal of a “mustard gas” simulant - 2-chloroethyl phenyl sulfide (CEPS), from the fluorinated solvent HFE-7100 (a mixture of methyl nonafluorobutyl ether and methyl nonafluoroisobutyl ether). More polar solvents such as THF efficiently flush the adsorbed CEPS from the column. Two parameters, half-life time of decontamination and total percentage of removed CEPS, were used to characterize column activity, which depended on monomer composition, polymer functionalization, and temperature. Polyamine-modified columns had a high affinity for CEPS, with removal efficiencies of up to 97% from contaminated HFE-7100 (4 h) being observed. The effect of “poisoning” amino containing columns by purportedly inert HFE-7100 at high temperature was established.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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