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Measurement of Toluene Solubility in PVAc Using a Quartz Crystal Microbalance  

Kim, S.B. (Department of Chemical Engineering, Kyonggi University)
Publication Information
Elastomers and Composites / v.43, no.3, 2008 , pp. 166-172 More about this Journal
Abstract
The resistance and frequency change of a quartz crystal microbalance during toluene absorption was measured for poly(vinyl acetate) (PVAc) with 268 nm thickness. Solubility of toluene in PVAc were measured at temperatures from 25$^{\circ}C$ to 42$^{\circ}C$ and pressures up to 28.4 torr. The frequency of a quartz crystal microbalance increased with increasing temperature and decreased with an increase in toluene vapor pressure. The resistance of a quartz crystal microbalance increased with increasing toluene vapor pressure and decreased with an increase in temperature. A greater pressure of toluene results in a greater solubility of the toluene into the PVAc film. The change of solubility was calculated by Sauerbrey equation.
Keywords
QCM; PVAc; frequency; solubility;
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