Abstract
Abstract The sorption behavior of low molecular weight organic vapors on β-cyclodextrin polyurethane resins was estimated from desorption or breakthrough experiments and compared with that on the commercially available resins. Temperature-programmed desorption patterns show that the β-cyclodextrin resins interact strongly with benzene vapor in a nitrogen or air stream. This strong interaction presumably results from the hydrophobic interaction of benzene with the β-cyclodextrin cavity. From the breakthrough experiments using the gas stripping method, it was found that the resin prepared by reacting β-cyclodextrin with 1,3-bis(isocyanatomethyl)cyclohexane, β-H6XDI-P-6.0-M, retains the polar volatile organic compounds more than Amberlite XAD-7 does.
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