The Journal of Physical Chemistry B

Unexpected interactions between sol-gel silica glass and guest molecules. Extraction of aromatic hydrocarbons into polar silica from hydrophobic solvents

JD Badjic, NM Kostic

Index: Badjic, Jovica D.; Kostic, Nenad M. Journal of Physical Chemistry B, 2000 , vol. 104, # 47 p. 11081 - 11087

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Citation Number: 34

Abstract

Properties of a solute may differ greatly between a free solution and that solution confined in pores of a sol-gel glass. We studied the entry of various aromatic organic compounds from solution into the monolith of sol-gel silica immersed in this solution. Partitioning of the solute is quantified by the uptake coefficient, the ratio of its concentrations in the glass and in the surrounding solution at equilibrium. The dependence of this coefficient on the solvent ...

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