Dielectric properties of cleaned and monodisperse polystyrene latexes in microwaves

On the basis of various dielectric models, the apparent volume fractions of the latexes were calculated

F. Henry; C. Pichot; A. Kamel; M. S. El Aasser

2005

Scholarcy highlights

  • On the basis of various dielectric models, the apparent volume fractions of the latexes were calculated
  • The dielectric behavior of three well-cleaned monodisperse polystyrene latexes having the same particle size and the same number of chemically-bound surface groups has been studied at a fixed microwave frequency, as a function of temperature and surface group
  • A large dielectric relaxation was observed in the sulfate-stabilized latex, which has the most polar surface end-group
  • The amount of “bound” water around the latex particle was quantitatively correlated to the polarity of surface end-group
  • The permittivities of hydrated particle and of “bound” water were obtained with a non-linear iterative procedure

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