A clear trend is that the number of molecules of the organic compounds in PDMS increases monotonically with increasing temperature for all compounds.
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Interfacial Separations by a Polydimethylsiloxane Layer. Molecular Modeling of Coated Stir Bar Extraction of Organics from Aqueous Solutions.
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The much larger molecular size and polar hydroxyl group is highly significant in reducing its diffusivity in the PDMS phase.