| Abstract
| - Polyurethane foams (PUFs) have long been used for thesampling of airborne organic pollutants. However, acomprehensive investigation of their sorption propertiesfor various organic compounds is still lacking. Here wepresent a systematic sorption study for a diverse set ofup to 100 compounds at temperatures between 15 and95 °C, at various humidities, and for various types ofPUFs. The results can be summarized as follows: Theperformance of PU-ethers is not susceptible to the humidity of the sampled air. Variability between different typesof PU-ethers is small, and the compound variability in thesorption constants as well as the enthalpies of sorptioncan accurately be described with linear free energyrelationships (LFERs) presented in the text. PU-estersrevealed an inferior sorbent behavior as compared to PU-ethers: sorption was kinetically hindered and was affectedby humidity. Sorption varied between different types ofesters and prediction with LFERs was less accurate thanfor the ethers.
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