Transmission and reflection measurements on polyamide nanocomposite films were performed in the THz frequency region, and the dielectric function was calculated using the Debye model to interpret the data. The relaxation time from the signal of orientation polarization due to the permanent dipole moments exhibits intermolecular interaction. In nanocomposites, the extreme increase of the interaction from polymer clay was first observed by THz spectroscopy. The essential interaction was thought to occur between the amide functional group in polyamide-6 and the surface of the clay by considering the correlation with the results of infrared spectroscopy.
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© 2004 American Institute of Physics.
2004
American Institute of Physics
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