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Photoacoustic investigation of iodine-doped polystyrene

1989; American Institute of Physics; Volume: 66; Issue: 1 Linguagem: Inglês

10.1063/1.343862

1520-8850

Afrânio Torres-Filho, N. F. Leite, L. C. M. Miranda, N. Cella, H. Vargas,

Transition Metal Oxide Nanomaterials

The kinetics of iodine doping of atactic polystyrene films is investigated using photoacoustic spectroscopy. The changes in the photoacoustically measured physical properties, such as nonradiative relaxation time and thermal diffusivity, are present as a function of the doping time. The results show strong evidence that an order-disorder transition is taking place as a function of the doping time. The suggested order-disorder transition is also evident in the dielectric constant measurements of the doped films.