Measurement of Toluene Solubility in PVAc Using a Quartz Crystal Microbalance

PVAc에서 Quartz Crystal Microbalance를 이용한 톨루엔의 용해도 측정에 관한 연구

  • Kim, S.B. (Department of Chemical Engineering, Kyonggi University)
  • Published : 2008.09.30

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.

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