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Dielectrophoretic technique for the preparation of density gradient polymers doped with a dipolar modifier

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Abstract

The dielectrophoretic technique was used to prepare density gradient polymers, polystyrene doped with a dipolar modifier, diphenyl sulfide. We have measured concentration gradients of the dopant by UV/Vis spectroscopy as a function of time in a nonuniform electric field. Measured concentration data at different positions of the sample confirmed that a concentration gradient arose after a nonuniform electric field was applied to the system, these data were used to compare the concentration profile with that predicted by the dielectrophoresis equation.

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Woo, DJ., Mun, J.M., Lee, SH. et al. Dielectrophoretic technique for the preparation of density gradient polymers doped with a dipolar modifier. Macromol. Res. 11, 467–470 (2003). https://doi.org/10.1007/BF03218977

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  • DOI: https://doi.org/10.1007/BF03218977

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